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HYDRA project is a revolutionary overclocking tool designed specifically for modern NVIDIA and AMD graphics cards, Ryzen processors, and DRAM. HYDRA delivers an entirely new level of system control: with its automated mode featuring an integrated assistant alongside the option for precise manual tuning, you achieve unparalleled accuracy in reaching your desired performance. Whether you're aiming for extreme overclocking or striving for energy-efficient optimization, HYDRA guarantees peak performance without compromising safety and stability.

Utilizing innovative algorithms, HYDRA automatically analyzes your hardware's potential, optimizes settings in real time, and provides an exclusive suite of performance tests to evaluate your tuning results. HYDRA is not just software—it’s your key to unmatched performance and stability, opening new horizons for both enthusiasts and professionals.

Every month, the project receives exclusive updates to keep it in tune with the latest hardware trends and technological innovations. These updates not only fix identified issues but also add new tests, modules, and features to enhance your tuning experience. Additionally, an official Discord channel has been established for support and discussion, where you can get assistance and share your experiences with other enthusiasts.

This guide provides a detailed walkthrough with practical examples, FAQs, and tips designed to ensure a comfortable introduction to the HYDRA software. With comprehensive explanations and step-by-step instructions, every user will quickly master all the functionalities of the program and optimize their computer for maximum efficiency. The FAQ section will help resolve common issues swiftly, while practical tips will assist in avoiding typical mistakes and make the tuning process smoother and more productive.

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FEATURES FOR RYZEN

AMD CO Auto-Tuning module:

Available in two modes – a "1-click" mode for quick setup or a professional mode for in-depth parameter control.

HYBRID OC:

A hybrid overclocking solution that combines the capabilities of AMD CO with classic static overclocking and a set of user-defined rules to achieve optimal performance.

Performance comparison tests:

This module performs a comparative analysis of system performance across various states, allowing you to assess the effectiveness of your tuning.

Manual Overclocking:

Provides the ability to manually adjust parameters to reach the desired level of overclocking.

Full control of AMD PBO2 and eCLK from Windows:

Enables direct management of AMD PBO2 and eCLK settings right from the Windows operating system.

Application profiling:

Allows you to create custom overclocking profiles for selected processes, ensuring maximum optimization.

T-CONTROL:

Automatically manages the Windows task scheduler and leverages some exclusive OS features to deliver maximum performance and smooth frame rates in games. It also supports user-defined application profiling.

Detailed monitoring and logging of processor sensors:

Provides data collection with a polling period of less than 10ms, enabling high-precision tracking and analysis of processor performance.

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FEATURES FOR DRAM

Automatic Timing Tuning, ODT searching (DDR5), and optional Undervolting of domains associated with DRAM operation:

This module provides automatic optimization of memory timings, including accurate ODT settings selection. It also offers the option for undervolting specific domains that impact DRAM performance, ensuring enhanced stability and efficiency.

DCFR - DRAM Calculator for Ryzen:

A module that helps in accurately selecting the timings for your DRAM. It offers ready-to-use presets, full control over all known DRAM parameters, and exceptionally detailed monitoring for maximum tuning precision.

CHECK MY MEM:

A module that employs a series of tests to verify the stability of the DRAM. It provides a quick check for errors and confirms the reliability of the DRAM under various operating conditions.

DRAM BENCH:

A comprehensive L2-L3-DRAM benchmarking tool that allows for comparing results and memory settings. It consists of a series of tests designed to determine the actual performance of the memory or the performance change resulting from adjusting one or more timings. It includes an unlimited history of experiments for thorough analysis.

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FEATURES FOR NVIDIA

Automatic Overclocking or Undervolting module for Core and VRAM:

Available in two modes – a "1-click" mode for quick setup or a professional mode for in-depth parameter control.

Core Curve creation and editing module with visual feedback:

Provides intuitive control over the Сore Curve. With an interactive interface, users can easily create, edit, and monitor changes in the Core Curve, enabling them to achieve optimal performance settings.

Application profiling:

Offers the ability to create custom profiles for applications, with support for simultaneous operation of up to 6 GPUs, ensuring task-specific optimization.

Manual Overclocking:

Provides flexible and precise adjustment of settings to achieve maximum performance, allowing users to experiment with various configurations.

GPU Sensor Monitoring:

Delivers real-time monitoring of key GPU parameters, including temperature, power consumption, frequencies, and fan speed, to provide the most accurate insights into its performance.

Performance comparison test (with and without optimization):

This test enables you to compare system performance before and after applying optimization settings, providing a clear understanding of the actual performance gains.

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FEATURES FOR RADEON

Automatic Overclocking or Undervolting module for Core and VRAM:

Available in two modes – a "1-click" mode for quick setup or a professional mode for in-depth parameter control.

Application profiling:

Offers the ability to create custom profiles for applications, with support for simultaneous operation of up to 6 GPUs, ensuring task-specific optimization.

Manual Overclocking:

Provides flexible and precise adjustment of settings to achieve maximum performance, allowing users to experiment with various configurations.

PowerPlayTable modification for Radeon RX 6000:

Enables the adaptation and optimization of power consumption and performance for Radeon RX 6000 graphics cards, unlocking additional tuning capabilities.

GPU sensor monitoring:

Delivers real-time monitoring of key GPU parameters, including temperature, power consumption, frequencies, and fan speed, to provide the most accurate insights into its performance.

Performance comparison test (with and without optimization):

This test enables you to compare system performance before and after applying optimization settings, providing a clear understanding of the actual performance gains.

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OTHER MAJOR FUNCTIONS

PING PONG:

A benchmarking tool for assessing inter-core communication within the processor, which also demonstrates the performance state of the FCLK. This module offers the ability to compare test results with an unlimited experiment history.

APPE - Advanced Power Plan Editor:

An advanced power plan editor that allows for fine-tuning of hidden settings. It provides control over 65 parameters for detailed performance and power consumption optimization.

VERIFICATION AMD CO:

A module for verifying the stability of the processor settings, enabling users to ensure the reliability of the applied parameters.

1-THREAD BOOST:

A benchmark designed to test the maximum performance boost under real-world conditions, demonstrating how tuning adjustments affect system efficiency in single-threaded tasks.

Unlocking Super Admin mode:

A feature that grants access to advanced system settings, enabling detailed control and optimization at an administrative level.

Management of C6 state and Performance Bias from Windows:

Allows control over the C6 power-saving state and Performance Bias settings directly from Windows, ensuring an optimal balance between performance and energy efficiency.

VBS:

A module that enables configuration of virtualization setting in the system, ensuring secure and efficient operation of virtual machines.

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REQUIREMENTS

Supported CPUs:

AMD. All desktop CPUs (and APU) based on Zen 3, Zen 4 and Zen 5 architectures.

Supported GPUs:

AMD. All desktop GPUs based on RDNA 2 and RDNA 3 architectures (RX 6000 and RX 7000 series).
NVIDIA. All desktop graphics cards that belong to the GTX 1000, RTX 2000, RTX 3000 and RTX 4000 series.

Requirements:

Windows 10 or Windows 11.
BIOS version, Chipset or GPU driver - no matter. But. I recommend using newer versions of the drivers and BIOS.
Actual version of Visual C++ Redistributable Runtimes All-in-One otherwise neither monitoring nor any processes will work.
A clean installation of the GPU drivers after using Display Driver Uninstaller.
CPPC, CBP, Cool & Quiet and Preferred Cores should be Enabled in BIOS/UEFI.
It is not recommended that you do any work, watch videos or play games during the diagnosis.
It is not recommended to use third-party monitoring software during diagnostics, it may affect the accuracy of the data from the sensors.
Recommended CPU LLC (Load Line Calibration) - Auto in BIOS/UEFI.

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VERSION COMPARISON

SPECIAL THANKS

VERSION COMPARISON

FEATURE	HYDRA NON PRO	HYDRA PRO
HYBRID OC	No limit, but the HYDRA will disable the function every 20 minutes Autostart with system start is not available	No limitations
T-CONTROL
RX/RTX/GTX-TUNER
CPU / GPU / DRAM MONITORING	No limitations
AMD PBO2	No limitations
DRAM CALCULATOR FOR RYZEN (DCFR)	No limitations
TESTS	No limitations
CPU DIAGNOSTIC	Functionality in EASY MODE mode
GPU DIAGNOSTIC	Functionality in EASY MODE mode
NVIDIA GPU CORE CURVE EDITOR	No limitations
NVIDIA GPU CORE CURVE BUILDER	Not available
DRAM DIAGNOSTIC	Not available
LOGGING IN .CVS	Not available
ADVANCED POWER PLAN EDITOR (APPE)	Not available
EXTENDED TECH SUPPORT VIA DISCORD	Not available

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T-CONTROL

T-CONTROL is a proprietary HYDRA feature designed to efficiently manage CPU threads in both everyday applications and games, resulting in improved performance. When T-CONTROL is enabled, the application is automatically set to autoload and the feature is launched at every subsequent system start. The primary objective of this module is to maximize the use of physical cores without relying on SMT whenever possible.

Just above the ON/OFF button, you can see a small table displaying the status of process control. This table contains information about:

The process name and its ID.
The CPU usage by the process.
Whether the process is using the GPU.
The mask applied to the process for control purposes.

For example, in my case, I ran a 16-thread Cinebench R23 task on a 16-core processor. The T-CONTROL module detected the process, analyze load and applied a mask to prevent it from using SMT.

As a result, I achieved roughly a ~20% performance boost, because if I were using the standard Windows thread scheduler, it would have attempted to distribute the task across cores with SMT. Moreover, the evaluation and activation of the mask occur in under half a second.

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T-CONTROL

Below is a breakdown of the main settings within this module:

Preferred CCD’s for Game (only for CPUs with 2 CCDs):

This option for gaming processes requires the Windows Task Scheduler to prioritize the selected CCD, preferably using only physical cores (without SMT). Additionally, it disables core parking to ensure maximum responsiveness and an optimal gaming experience.

Holding Mask:

If a previously selected process ceases to utilize the processor, the mask remains active until the specified hold time expires.

Process Priority Boost:

When enabled, this option allows the selected processor to boost its priority within the system.

Clear Standby Cache:

This option attempts to clear caches of outdated data to free up physical memory. This process is executed periodically.

Redefined Best Core:

This function sets the priority for the CPU cores on which a process using no more than four threads will run. In other words, the user defines which core will handle the low-thread boost rather than leaving the decision to AMD or the Windows thread scheduler.

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T-CONTROL

T-CONTROL Module – Manual Profiling Feature

The T-CONTROL module also offers the ability to manually profile any process chosen by the user.

A clear example of its use could be as follows: suppose you have a 16-core processor composed of two CCDs. You create a profile for a streaming service and configure it to use only the second CCD. Then, you launch a game and start your stream. In this scenario, the game will utilize only the first CCD—using physical cores wherever possible—while the streaming process will run at full capacity on the second CCD without competing for resources on the first CCD.

The process of creating a profile is very simple. After clicking the plus button, a dialog window opens displaying all currently running processes in the system. You then select the desired process and confirm your choice. Next, you choose which cores are allowed to run the process—and that's it.

Additionally, the T-CONTROL module allows you to export and import profiles. The functional buttons for these actions are located next to the ON/OFF switch.

Please note that once a profile is created manually by the user, it is not subject to other automatic rules. This means that T-CONTROL will not analyze or modify the mask for your profile.

Important note:

If you see that the icon featuring a floppy disk is highlighted in bright white, it indicates that there are unsaved changes that you should consider saving.

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ADVANCED POWER PLAN EDITOR

SPECIAL THANKS

APPE empowers users to fine-tune 65 hidden power profile parameters that govern the Windows thread scheduler and energy-saving mechanisms. By default, it clones the Balanced power profile and enhances it with exclusive optimizations designed to boost system performance. All custom settings are applied exclusively to the HYDRA Power Profile, ensuring a tailored and consistent tuning experience.

In addition, the user can import, export, or delete HYDRA Power Profile, providing convenient management and sharing of configurations.

Important note:

If you see that the icon featuring a floppy disk is highlighted in bright white, it indicates that there are unsaved changes that you should consider saving.

Important note 2:

The icon located at the very bottom (a combination of a wrench and a screwdriver) represents a feature that corrects improper installation of chipset drivers for the Ryzen 9 7950X3D.

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LOGGING IN .CSV

You can record processor sensor data as log files in CSV format with a polling rate exceeding 100 times per second. To start logging, simply press the designated button—it will activate. When you wish to stop, press the same button again. The recorded data is immediately transferred from the cache to a file, which can be found in the LOGS folder located in the application's root directory.

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BUILT-IN TESTS

1-THREAD BOOST

A diagnostic test that evaluates the single-threaded performance of each core individually. In addition to measuring maximum and average frequency, it also provides information on average core power consumption, voltages, and temperatures. This test is fully compatible with AMD Curve Optimizer, HYBRID OC, and HYBRID OC + AMD PBO2.

DEFAULT vs HYBRID OC and DEFAULT vs AMD PBO2

This evaluation mode for custom processor tuning allows you to compare the standard CPU state with HYBRID OC, HYBRID OC + AMD PBO2, or AMD PBO2 alone. Cinebench R23 in multi-threaded mode is used as the reference test. In addition to performance evaluation, the user can assess changes in voltage, temperature, power consumption, and the operating frequency of the processor.

DEFAULT vs RTX-TUNER or DEFAULT vs RX-TUNER

This graphical test compares the system’s performance in its default state with the optimizations (overclocking) applied by the user—or performed automatically during diagnostics—in the RTX-TUNER or RX-TUNER tab, depending on whether an AMD or NVIDIA graphics card is used. At its core lies a stress test that utilizes the tracing technology from the Pure RT benchmark, developed by Miguel Albo.

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BUILT-IN TESTS

DRAM BENCH HISTORY

This section leads to a page where the results of successful DRAM BENCH experiments are stored.

PING PONG BENCH HISTORY

Similar to DRAM BENCH HISTORY, this functionality stores the results of corresponding tests.

VERIFICATION AMD CO

This is a set of tests that verifies whether the system, with user-defined settings (as seen on the AMD PBO2 page), is stable. Additionally, this module can automatically correct AMD CO adjustments when instability is detected.

CHECK MY MEM

A module that employs a series of tests to verify the stability of the DRAM. It provides a quick check for errors and confirms the reliability of the DRAM under various operating conditions. The CHECK MY MEM package includes the following tests: HCI, Super Pi (from Y-cruncher) and VT3 (from Y-cruncher).

Important note:

Since HYDRA is constantly receiving significant updates, the test suite may be expanded along with its functionality.

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PHOENIX

SPECIAL THANKS

PHOENIX is a system that stores step-by-step results and automatically resumes diagnostics from these temporary files. The user has access to restore the CPU, GPU and DRAM diagnostic functions. If, for any reason, the diagnostic process fails to continue, simply click the button with the phoenix icon. Then, choose the type of diagnostic you wish to resume and that's it.

Additionally, the PHOENIX system creates a task that automatically launches HYDRA after a system reboot or shutdown. This means the user does not need to manually manage the system at all.

Important note:

If the system contains temporary files with data for the selected type of diagnostic, the process will resume; otherwise, nothing further will occur (a corresponding message will appear in the log).

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PCI-MUTEX HOLDING TIME HAS EXPIRED

The user may sometimes see messages such as “PCI-MUTEX holding time has expired” or for example “CMD_REJECTED_PREREQUISITE”. This occurs when third-party software attempts to interfere with HYDRA. HYDRA uses a global PCI bus mutex to securely interact with the processor. All applications that communicate with the processor are required to use this mutex so that commands sent to the processor are not corrupted—in simple terms, every application is queued one after the other. If an application is poorly written, this queue can be stalled for an extended period. Consequently, the HYBRID OC dynamic frequency scaling and profile switching system may also halt, which at best results in a system freeze and at worst in a reboot.

Examples of such interfering applications include RGB control software, fan control software, overclocking programs, or monitoring tools. Since I cannot ask users to boycott these useful applications, I developed a method for HYDRA to attempt sending CPU commands outside of the standard queue. To enable this workaround, the user simply needs to disable the Global PCI mutex (found in the Global Settings tab). The downside of this approach is that it removes one layer of command protection—only the hardware SMU mutex remains active.

Bottom line: if you see persistent error messages in the log, consider this workaround. If it’s a one-time occurrence, you can safely ignore it.

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STABILITY PROBLEMS

The user also has an additional option to identify which process or service might be interfering with HYDRA and potentially affecting other useful applications in the system. On the LOGGING tab, you will find a button highlighted in yellow. This button scans the system for conflicts. Please note that not all programs are harmful, but for the stable operation of HYDRA, it is advisable to close even those applications that you see running on my system.

Less common causes:

Running other overclocking programs, fan/RGB control applications, or lesser-known monitoring tools in parallel.
Installing a new cooling system or a new motherboard.
Using overclocking features directly from the UEFI (BIOS) at the same time.
Running non-trivial stress tests that generate a load exceeding what is typically encountered during gaming or regular work.
Changing the VRM or DRAM settings directly in the UEFI (BIOS).
Diagnosing the system at room temperature—which can be significantly different from its operating temperature (diagnostics might have been performed using a chiller).
Updated AGESA.

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GAME IS NOT DETECTED

A common question among users is: “Why isn’t the game profile activating in HYBRID OC?” or “Why does T‑CONTROL not detect my game and apply the wrong mask?” To address these issues, navigate to the application settings tab and review the “Game Detection” group located in the lower-left section.

The GAME profile requires several conditions to be met:

GPU MEMORY trigger:

This value determines the minimum amount of dedicated video memory required to trigger the activation of the game profile. If your game uses significantly less memory, this trigger may not activate properly—you will need to adjust the value manually.

GPU CORE trigger:

Specifies the minimum GPU usage needed to activate the game profile.

Important note:

All of the above triggers must be satisfied for the game profile to activate. If a trigger is set to 0, it will be ignored (disabled).

Important note 2:

Additionally, the game must be in focus (i.e. running in the foreground) for the profile(or mask) to activate.

These triggers are designed to prevent false activation of the game profile in applications such as mining, where the profile is not required.

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TDC / EDC / PPT / TEMPERATURE LIMIT REACHED

One of HYDRA’s primary objectives is to ensure processor safety. Since manual overclocking traditionally lacks an integrated protection system, I developed a custom solution that continuously monitors the processor using four key sensors:

Max PPT (W):

Defines the maximum allowable power consumption of the processor.

Max EDC (A):

Stands for Electrical Design Current, which sets the upper limit for short-term transient power.

Max TDC (A):

Represents the Thermal Design Current, establishing the long-term power cap.

Max Temperature (°C):

Indicates the maximum thermal limit deemed safe for the CPU.

If the monitoring system detects that any of these thresholds have been reached, HYDRA will either halt the current diagnostic process or switch to throttling mode (for a short period) when HYBRID OC is active.

By default, these limits are set conservatively. In case you receive warnings such as “TDC / EDC / PPT / Temperature limit reached!”, it is advisable to increase the corresponding values in the Safety System settings group. Please note that the maximum CPU temperature is fixed and represents the safe limit as defined by AMD.

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SPECIAL THANKS

Vadym Kosmin (@A_z_z_y), @Veii, Alexey Shalpegin (@15432), Keaton Blomquist (@sbski), @patrickschur_, @PJVol, Ivan Rusanov

@ManniX, @Reknez, @LEIV, @Tyler15e, @wanderinarcheologist, Martin Malik, Ann Martiné, @DayDreamer, @rizlah

@kutale, @arcanazen, @RdWing, @Bloax, @Riwwelorsch, @Gadfly, @ACE, @Devin, @profitkaa

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SPECIAL THANKS

CPU SECTION

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CPU DIAGNOSTIC - EASY MODE

For those who are just starting to get acquainted with HYDRA or overclocking in general, there is an EASY DIAGNOSTIC mode that omits professional settings and follows a one-click concept. In the screenshot, you can see a dropdown list containing presets with predefined settings:

Find "AMD CO", Undervolting PBO
Find "AMD CO", Normal PBO
Find "AMD CO", Overclocking PBO

As you can see, every item in the list comes with a very detailed description of the settings that each preset emphasizes.

Additionally, I have highlighted a button with a gear icon, which allows you to switch to the professional mode. There is also a toggle labeled Turn off system after diagnostic, which functions as its name suggests – it automatically shuts down the system once the diagnostic (tuning) process is complete.

To sum up, to launch the diagnostics, the user simply selects a preset and clicks the button with the checkmark icon.

Important note:

No preparatory steps are required, except for ensuring that your DRAM is stable. If the user is already using any form of overclocking, HYDRA will automatically disable it to ensure accurate diagnostic results.

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CPU DIAGNOSTIC - SETUP

To perform diagnostics, press the SCAN button on HYDRA's bottom panel, then select the icon representing the processor. An auxiliary window with settings will appear. In the upper-left section, you can choose which cores will participate in the diagnostics and set the initial CO (Curve Optimizer) values. On the right side, you will find the test control table, which allows you to manage the PBO tolerance during diagnostics, specify the cycle duration, select a eCLK value, and adjust other auxiliary settings.

By default, HYDRA offers optimal settings, but you can customize them as needed. For example, you can lower the initial CO values to speed up the diagnostic process or set a custom cycle time for the test. Also, keep in mind that your results may vary significantly when using different PBO2 settings.

The lower half of the window is dedicated to controlling the four modules that make up the comprehensive diagnostic process. The modules are as follows:

SEARCH CORE AMD CO – This module performs the same function as the AMD Curve Optimizer search.

SEARCH CORE/CCD HOC CO – This module searches for HOC values—a more powerful alternative to the AMD Curve Optimizer, developed exclusively for HYDRA, ensuring the proper operation of HYBRID OC.

PROFILE CREATION – This module creates boost profiles for various CPU load scenarios based on the obtained HOC values.

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CPU DIAGNOSTIC - SEARCH CORE AMD CO

SEARCH CORE AMD CO – This module allows you to retrieve the same CO (AMD Curve Optimizer) values that you might have seen in the UEFI (BIOS), as well as additional corrective CO values required for the proper operation of HYBRID OC. These values are determined relative to the user-defined parameters of PBO2 (TDC, EDC, PPT, THM, and Fmax).

If you do not plan to use HYBRID OC in the future and intend to rely solely on the Curve Optimizer, it is recommended to disable all other diagnostic functions (indicated by the orange switches) except for SEARCH CORE AMD CO.

For example, I selected my initial AMD CO values to expedite the process, and I also chose the Preset PBO - OPT, which automatically adjusted all the AMD PBO2 settings used for diagnostics (i.e., CO search).

I left the Verif.cycles value at 1, meaning that if an unstable CO value is detected, only one additional stability verification cycle will be performed.

I also kept the eCLK frequency at 100, so that the External BCLK operates at 100MHz.

Finally, I set the Test time to 30 seconds, which instructs HYDRA on how long to verify the stability of the CO value.

Important note:

Please note that these settings significantly affect the discovered CO values. For example, if you have performed diagnostics for THM at 60°C, running the system at 90°C could lead to malfunctions.

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CPU DIAGNOSTIC - SEARCH CORE AMD CO

Important note:

The eCLK option is an exceptional tool for achieving maximum processor boost, but it is available only on motherboards that have an External BCLK. Typically, these are found on X570, X670, or X870 boards. Another advantage of this function compared to the regular BCLK is that changing its value does not affect other domains, such as UCLK, FCLK, MEMCLK, and others.

Important note 2:

Reducing the Target THM is extremely beneficial for boosting the performance of Zen 4 processors, as it helps mitigate the thermal feedback loop (where an increase in temperature requires a higher voltage to maintain the same frequency, which in turn further increases the temperature). In general, all processors benefit from lowering the Target THM.

Important note 3:

Sometimes it can be beneficial to synchronize the diagnostic settings with the AMD PBO2 settings simply by pressing the button featuring two arrows pointing at each other.

Important note 4:

Some X3D processors do not support manual overclocking; therefore, the SEARCH CORE/CCD CO and PROFILE CREATION modules will be unavailable.

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CPU DIAGNOSTIC - SEARCH HOC CO

SEARCH CORE HOC CO and SEARCH CCD HOC CO – these functions allow you to find the HOC CO values required for the stable operation of HYBRID OC (an overclock boost similar to AMD’s Curve Optimizer, but without the limitations present in Curve Optimizer).

Target VID – This is the target voltage at which the cores or the entire CCD will be diagnosed. A value of 0 indicates that the application will automatically select the optimal voltage that meets the PBO2 conditions shown in the image above. More experienced users can manually choose their own value. The optimal voltage typically ranges from 1300–1400 mV for SEARCH CORE HOC CO and from 1050–1150 mV for SEARCH CCD HOC CO.

Important note:

Any results obtained during these diagnostics are entirely dependent on AMD CO.

Important note 2:

At the next stage, when profiles are created, they will be based on the values obtained during these diagnostics as well as the Target VID.

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CPU DIAGNOSTIC - PROFILE CREATION

PROFILE CREATION – This is the final stage of diagnostics, where profiles for HYBRID OC are created based on the previously obtained CO and HOC CO values. During profile creation, the Target VID is also taken into account, which partially depends on the target values for PPT, TDC, EDC, THM, and Fmax. In this process, not only Vdroop is considered, but also the individual characteristics of the cooling system and other important factors.

Important note:

The resulting CO values or frequencies for the profiles may vary slightly from one diagnostic run to another. Do not view this as a problem—the processor is a dynamic system that "learns" and makes minor adjustments to the operation of CO and other functions each time it starts up.

Important note 2:

As you may have noticed, the diagnostics have a modular structure. This means you don't need to run a new diagnostic if, for example, you have changed the profile voltages or wish to re-diagnose a specific core. Simply disable the corresponding functions using the orange switches.

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CPU DIAGNOSTIC - PROCESS

SPECIAL THANKS

After the user confirms the start of the processor diagnostics (such as the AMD CO search, etc.), the system will begin stress testing. On this slide, you can view the log that displays the current processor settings. All information regarding the progress of the tests and any errors will be recorded in this log.

Please note that the process may take a significant amount of time, as HYDRA sequentially verifies the stability of each CORE and the entire CCD—it can last 4 hours or more. Naturally, the more cores you have and the higher the quality of the chip, the longer the testing will take.

The key point is: do not interact with the system, do not launch any applications, and even avoid using a browser during this process. Otherwise, if the load keeps fluctuating on cores that are only preparing for diagnostics and are theoretically unstable, this may lead to an incorrect interpretation of stability.

Also, do not be alarmed if HYDRA suddenly reboots the system—this is completely normal.

If you urgently need to use the computer, you can press the PAUSE button to temporarily suspend the process. Pressing the STOP button will completely halt the diagnostic process.

Important note:

Upon completion of the diagnostic process, the user will be informed via the log.

Important note 2:

If the system is frozen, simply reboot it manually. The diagnostic process will resume automatically.

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AMD PBO2 - TAB

The AMD PBO2 tab not only stores search results for CO values (CPU diagnostic outcomes) but also allows you to manage PBO2 settings in real time—without requiring a system reboot.

Users can:

Individually control the CO value for each core. Just pull the slider.
Adjust PBO2 settings (PPT, EDC, TDC, FIT, THM and Max frequency).
Manage the iGPU magnitude (a functionality similar to CO, but for the integrated graphics adapter).
Configure the eCLK frequency (External BCLK, if supported by the motherboard). Step 0.1MHz. Only affects the CPU frequency.

Activation or deactivation of all settings is managed through a button featuring a miniature graph. When pressed, HYDRA remembers the state of this button so that, for example, upon the next system boot, it can automatically launch and activate all your user settings.

For easier simultaneous management of all CO settings, three small buttons are located next to the "CCD#0 Curve Tuner" label. The first button—with arrow icons—resets the CO values for the selected CCD, while the other two buttons increase or decrease all CO values for that CCD simultaneously.

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AMD PBO2 - TAB

Additionally, the AMD PBO2 module allows you to export and import profiles. The functional buttons for these actions are located next to the ON/OFF switch. As a last resort, there is a reset button that restores all settings to their default state. This button is represented by an eraser icon.

When the AMD PBO2 module is active, you can view all changes in real time on the monitoring panel (top half of the screen).

Important note:

If you see that the icon featuring a floppy disk is highlighted in bright white, it indicates that there are unsaved changes that you should consider saving.

Important note 2:

If the settings are active, the button will be highlighted in a bright white color.

Important note 3:

AMD PBO2 module does not overwrite or modify the processor’s factory settings in any way. All changes made using this module are temporary and will be lost after the system is rebooted.

Important note 4:

Some motherboards impose certain restrictions on adjusting PBO2 values. Please note that if you exceed these limits, the monitoring panel will display an abnormal value.

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HYBRID OC - TAB

The HYBRID OC tab contains two distinct types of data:

HOC CO Table – This table essentially serves as a correction table for the AMD Curve Optimizer (CO).

Why is this table needed? Many users may have noticed that AMD limits the CO value to a maximum of -30 (for Zen 3) or -50 (for Zen 4 and Zen 5). This HOC CO Table, however, is not subject to such limitations. In addition, it includes two boost control curves (instead of the single curve provided by AMD): one for low-threaded workloads with high voltages and one for multi-threaded workloads with lower voltages. This dual-curve approach enables more efficient management of core frequencies based on the load and the number of active threads. The table also displays the maximum stable frequency that the cores can achieve under the LT (Low Threading) profile.

Profile Table – This section stores the profile parameters along with various control elements such as the dynamic state (which allows real-time frequency adjustments) and the PBO mode (for detailed information on this mode, please refer to the corresponding materials).

Below these two tables, you will find the control elements for HYBRID OC itself. These include options for enabling/disabling the mode, saving settings and profiles to a file, creating a backup file, loading a backup, and a button to reset settings and parameters to their default values.

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HYBRID OC - ACTIVATION

After successfully completing diagnostics, you can begin using HYBRID OC. To do this, simply click the enable button located below the Profiles Table. If everything has gone well, you will see that the button becomes active. The state of the pressed buttons is saved automatically.

Additionally, when HYBRID OC or any other technology (T-CONTROL, RTX-TUNER, or RX-TUNER) is activated on other tabs, HYDRA will automatically enable autoload along with the automatic activation of these technologies. By default, autoload is set to the taskbar, but you can change it to the system tray in the settings menu (gear icon in the upper right corner).

Important note:

How do you know everything is ready for HYBRID OC activation? It’s simple—the tables will be filled with various data.

Important note 2:

If the tables contain only the default values, you will almost certainly experience system crashes or very low performance.

Important note 3:

If you disable HYBRID OC and no other technologies such as T-CONTROL, RTX-TUNER, or RX-TUNER are enabled at that time, then HYDRA will not autoload on the next system startup.

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HYBRID OC - ADDITIONAL SETTINGS

This settings block is constantly evolving and is often simplified to enhance the user experience. The Dynamic profile VID for LT and Dynamic profile VID for MT settings allow for dynamic adjustment of HYBRID OC profile voltages based on the THM parameter, which you can find in the Profiles Table (HYBRID OC tab). In essence, if the processor temperature is below THM, enabling either Dynamic profile VID for LT or MT allows the voltage to increase until the temperature reaches the THM value. Conversely, if the processor temperature exceeds THM, the active profile (and any profile permitted for dynamic voltage regulation) will reduce the voltage until the temperature aligns with the THM value.

Important note:

The dynamic voltage regulation range can be up to 200mV and depends on various factors.

Important note 2:

Some user-specific scenarios may cause system stability issues because HYDRA might not have predefined rules for certain types of loads. To resolve stability problems, it is recommended to disable these settings based on the profile in which the failure occurs.

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HYBRID OC - USER PROFILES

HYBRID OC also supports custom profiling for individual processes or groups of processes.

This means that a process—or a group of processes—can be tailored according to user-defined rules, whether through static overclocking or by applying AMD PBO settings.

To create a custom profile for a process or group of processes, the user should double-click on the label USER#0, USER#1, or USER#2. After a few seconds, a new dialog window will appear. On the left side of this window, you’ll see a list of processes sorted in descending order by the amount of physical memory used, which can be profiled. On the right side, you’ll find a list of processes that have already been added to the custom profile. In my example, the right side is empty because I haven’t added any processes yet.

Adding a process is very simple: select the desired process from the left list, click the button with the pencil and sheet icon, and it will immediately appear in the right list.

A little further down, you can optionally set the time during which the profile is active. If the profile is enabled permanently, the displayed value will be 00:00 – 00:00.

Once you have selected all the required processes and configured the operating time, simply click the button with the checkmark in a circle to save the profile.

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HYBRID OC - PBO MODE

PBO MODE – This is a special operating mode of HYBRID OC in which the processor’s performance for a given profile is limited solely by PBO settings (THM, TDC, EDC, and PPT).

How should this be interpreted? Please refer to the accompanying image, which shows the following:

In the column labeled H/PBO, either no values are displayed or the checkmark is removed. This indicates that the profile is operating in PBO mode.
In the columns for THM, TDC, EDC, and PPT, you will find the performance limits for each respective profile. In my case, the LT profile is capped at 80°C, while the MT profile, which is responsible for multi-threaded loads, is limited to 60°C, and so on. I did not adjust TDC, EDC, and PPT, leaving them at the default values provided by HYDRA for the 7950X3D.
It is essential that HYBRID OC is enabled; this is indicated by the status panel icon lighting up white instead of gray.

What do we see as a result? For demonstration, I ran CB23 in 32-thread mode. The system load can be observed on the panel near the CCD monitoring area. In the Profiles Table, the MT profile (i.e., the multi-threaded profile) is highlighted in red, indicating that its settings are currently active (green frames).

Important note:

The user has the ability in HYBRID OC to mix modes for different profiles without restrictions. For instance, you can set the LT profile to PBO mode while assigning H mode to all other profiles (as indicated by the checkboxes next to the profile name).

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MANUAL OC

This is the classic, old-school manual overclocking that users have relied on for decades. For Ryzen processors, users can individually control the frequency for each CCD.

To enable HYBRID OC with a single, global setting, follow these steps:

Activate the MANUAL OC profile:

This profile is located at the very end of the profiles list.

Enable HYBRID OC:

Press the HOC ON button.

It’s well known that manual overclocking can be risky. To address safety concerns with MANUAL OC, the profile is equipped with a throttling system. If any of HYDRA’s safety thresholds are exceeded, the profile will be disabled and the standard AMD boost will be temporarily reactivated. The duration of this throttle period is controlled by the Timeout of Throttling (s) setting (found in the Safety System group on the global settings tab).

Important note:

After pressing the HOC ON button, HYDRA automatically configures the profile to activate on the next system start. This means the user will no longer need to manually activate the MANUAL OC profile each time the system boots up.

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SOME CPU TWEAKS

The Global Settings section includes a number of additional important functions, one of which is core sleep management. The C6 state, known as deep sleep, often leads to uncontrolled frequency spikes when a core wakes up (you may have seen monitoring programs showing frequencies over 5250 MHz for Zen 3), which can result in system crashes. This is a common issue, and currently there is no microcode update available to resolve it. Disabling this feature can improve system stability. Note that this problem does not occur with Zen 4 and newer processors. Additionally, disabling C6 states can slightly enhance gaming performance by ensuring that cores remain active and ready for computation.

Another crucial tweak frequently encountered in BIOS/UEFI is the Performance Bias setting. This function allows you to fine-tune a range of hidden parameters—including cache settings, branch prediction, and prefetchers—to extract extra performance in certain scenarios.

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CPU MONITORING CUSTOMIZATION

Ryzen processor monitoring in HYDRA is among the most advanced available. It displays detailed information for processor cores across 24 (!) parameters with a standard sampling rate of only 10ms. Despite processing such a large volume of data, it has a negligible impact on CPU usage.

Users have the ability to customize the monitoring by selecting the sensors of interest and choosing the type of data display (current value, maximum, minimum, or average).

Next to the HOT SPOT and L3 CACHE labels, there is an icon featuring a gear and a wrench. Clicking this icon will take you to the monitoring settings menu. For more information on each sensors purpose, simply hover your mouse over the sensor.

The Real-time CO Info option allows you to view the currently set CO values (for example, as configured in the BIOS/UEFI or by third-party applications) so that you can see how the algorithm is adjusting these values. However, it is not recommended for continuous use, as polling this data can increase CPU usage.

Currently, GPU monitoring offers basic functionality with the ability to switch between adapters.

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SPECIAL THANKS

GPU SECTION

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NVIDIA GPU DIAGNOSTIC - EASY MODE

Undervolting, CORE VID limit 800mV, PPT limit 75%
Undervolting, CORE VID limit 900mV, PPT limit 90%
Normal, CORE VID limit 1050mV, PPT limit 100%
Overclocking, CORE VID limit 1050mV, PPT limit max

As you can see, every item in the list comes with a very detailed description of the settings that each preset emphasizes.

To sum up, to launch the diagnostics, the user simply selects a preset and clicks the button with the checkmark icon.

Important note:

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NVIDIA GPU DIAGNOSTIC - SETUP

If you use Display Driver Uninstaller (DDU) to reinstall drivers, no preparatory steps are necessary. The only requirement is to avoid running any other programs that modify overclocking settings concurrently.

The diagnostics for NVIDIA graphics cards is a sequential mechanism for identifying stable values for both VRAM and the CORE curve. Fortunately, there are very few settings, so even a junior-level user can configure everything quickly and accurately.

The Preset settings provide templates for a faster and more intuitive interaction with the user interface. There are four available presets:

UV 1 – for aggressive undervolting,
UV 2 – for moderate undervolting,
DEF – for no change in power consumption, and
OC – for maximum overclocking permitted by the graphics card manufacturer.

MEM test time and CORE test time determine the duration of testing during the step. 1 = 60 seconds.

At this stage, in 90% of cases, you can simply press the start button, which is marked with a checkmark icon. However, if you are interested in more detailed configuration, then the following text is for you.

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NVIDIA GPU DIAGNOSTIC - SETUP

MEM offset – The initial offset value relative to the standard VRAM frequency.

CORE offset – The initial offset value for the entire curve relative to the standard CORE curve.

FAN speed – The fixed fan speed percentage. If set to -1, it indicates automatic mode.

Voltage limit – The maximum CORE voltage allowed during diagnostics.

Total power – The TBP limiter, measured in percentage. A value of 100 represents the base TBP state.

The button with the eraser icon allows you to reset all settings to the default values recommended by HYDRA.

Important note:

For example, if you do not want to perform VRAM testing (i.e., if you don't want to search for the maximum stable VRAM frequency), setting the MEM test time to 0 will disable it.

Important note 2:

The maximum TBP value is determined by the graphics card manufacturer—even if it is not NVIDIA.

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NVIDIA GPU DIAGNOSTIC - TUNING PROCESS

After the diagnostic (tuning) process is launched, HYDRA automatically switches to the LOGGING tab to display all changes in real time. Since the diagnostic process is complex, the user will see actions such as automatic test restarts, video card driver restarts, and even system reboots— all of which are completely normal.

The diagnostic process may take hours and is almost independent of the user’s settings, as no one truly knows the practical potential of the graphics processor (i.e., the quality of the silicon). When the process is completed, a corresponding entry will appear in the log. Additionally, the obtained values will be automatically applied to the corresponding settings in the RTX-TUNER tab.

The user always has the option to stop or pause the diagnostics by using the corresponding buttons, as indicated on the slide.

Important note:

For the most accurate results, it is recommended not to interact with the system at all while the diagnostic process is running.

Important note 2:

The final results are greatly influenced by the GPU cooling system and the ambient temperature. This means that over time, if the thermal paste dries out or the temperature conditions change, the validity of the diagnostics will diminish. In such cases, a new diagnostic run is required.

Important note 3:

Among all available settings, the UV1 and UV2 presets consistently offer a much better performance-to-power consumption ratio.

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RTX/GTX-TUNER - TAB

RTX/GTX-TUNER is the control panel for managing NVIDIA GPU settings and profiling. On this tab, users will find all the necessary tools to overclock their adapter or create customized settings for specific games.

RTX/GTX-TUNER supports unlimited profiling for up to 6 adapters simultaneously. Each adapter within each profile offers settings for fans, power, voltages, frequencies (curve too) and more.

In the left section, highlighted with a yellow rectangle, the user will find the main settings. The Profile area allows you to scroll through profiles (via a dropdown list), add new profiles (plus button), or delete existing ones (minus button). The Global profile is the base profile, containing the graphics card settings that work for any application.

A bit lower, in the Adapter row, the adapter’s index and name are displayed. Additionally, the user can scroll through available adapters for convenient configuration.

Further down, you will see the RTX/GTX-TUNER enable/disable button along with a status bar that shows the current activity of RTX/GTX-TUNER. In my example, the status is Global, which means that Global profile is used.

At the very bottom, there are buttons to save the current profile settings, as well as standard buttons for creating a backup, loading a backup, or resetting all profiles to their default state (i.e., deleting everything).

Important note:

Switching adapters or profiles automatically updates the current GPU settings in the corresponding sections.

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RTX/GTX-TUNER - TAB

The most crucial element here is the CORE curve. To view or modify it, simply click the EDIT CORE CURVE button; a new window will open with the control panel for the curve of the selected adapter.

MEM offset – Adjusts the VRAM frequency relative to the factory settings.

Power limit – Sets the maximum power consumption limit relative to the default value.

Temperature limit – Defines the maximum temperature at which CORE throttling does not activate.

FAN RPM – As the name suggests, it regulates the fan speed in a static mode. A value of -1 indicates automatic mode.

Temperature priority – This setting controls the CORE throttling mechanism by determining which parameter should be prioritized first. If this option is disabled, the system prioritizes the Power limit; if it is enabled, the priority shifts to the Temperature limit.

Important note:

Most limitations are imposed by the silicon's capabilities, the cooling system, or the graphics card manufacturer.

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NVIDIA GPU CORE CURVE CONTROL

The user can access the CORE CURVE CONTROL module on the RTX-TUNER tab by clicking the EDIT CORE CURVE button. This module enables you to modify the existing core curve or create a completely new one quickly and easily with the help of several automatic assistants. The curve creation process is based on adjusting offsets relative to the base curve, which is displayed in white. Although the base curve comprises 128 points, for ease of management the user only controls the key points. All non-accessible points are automatically connected using an interpolation method and by GPU driver correction. The offsets for the key points are defined in the middle row of the table, where:

The first row provides the voltage information for the key points, and
The last row shows the actual core frequency that will be achieved at the voltage specified in the first row.

In other words, each key point corresponds to one column in the table. I've marked an example in the picture.

When an offset value is changed in the table, the user can immediately see visual updates on the graph, indicated by a red dashed line. Additionally, when a key point's offset is modified, the adjacent key points may be automatically recalculated to ensure that the curve maintains the correct shape.

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NVIDIA GPU CORE CURVE CONTROL

The CORE CURVE CONTROL module includes several mini-tools that help you quickly and accurately modify the curve:

Up/Down Arrows:

These arrows adjust the entire curve’s values by a step of 10MHz. If no key points are highlighted in red—or if only one key point is highlighted—the entire curve is modified. However, if you highlight multiple points (in red) in the table, only the curve within that range will be adjusted.

Scissors:

If you want to limit the GPU voltage, select the point that will serve as the limit and press the scissors button. This tool effectively cuts off the unwanted portion of the curve. The changes are immediately visible on the screen.

Synchronization Tool (Two Arrows Pointing at Each Other):

This tool is used to synchronize offsets. For example, if you want to set all offsets to the same value as a chosen point, simply highlight that point and press the synchronization button. The entire curve will then have the same offset. You can also synchronize a specific range by selecting multiple points and pressing the synchronization button.

Important note:

“Selection” (highlighting) refers to clicking and dragging over the table containing the offset values.

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NVIDIA GPU CORE CURVE CONTROL

Eraser Icon Button:

This button resets the modified curve back to its base state.

Hammer Icon Button (GPU CORE CURVE BUILDER):

This tool helps you build the base template of the curve based on several key points. A detailed explanation of this process is provided on a separate page.

Important note:

Please note that some graphics card models have limited overclocking capabilities, meaning that you may encounter situations where the card will not use a voltage above 1050 mV.

Important note 2:

If you already have an active RTX-TUNER – meaning you previously pressed the ON button on the RTX-TUNER tab – then any changes to the curve will be applied instantly. In all other cases, you will only see the changes reflected on the graph (indicated by the red dashed line).

Important note 3:

In the upper right corner, the index adapter and name of the graphics card whose curve is being modified are displayed.

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NVIDIA GPU CORE CURVE BUILDER

Since the actual curve comprises 128 offset points, a tool is needed to streamline the process of drawing a smooth, step-free curve. This is exactly the purpose of the GPU CORE CURVE BUILDER.

With this tool, the user can select the desired number of points (key points) and manually define the VID(mV) and OFFSET(MHz) frequency (relative to the default curve) for each one. Once you click the OK button, the curve is generated and you are automatically redirected to the tab where the new curve is displayed.

Important note:

If you have previously run GPU diagnostics, you may have noticed that the offset values are not linear—some segments may show offsets of several hundred MHz, while others nearly drop to zero. Therefore, having a tool that accounts for all these critical inflection points is absolutely essential for creating a stable and accurate curve.

Important note 2:

The values in the VID string must strictly increase from point P0 to point PX; otherwise, the curve will not be constructed. In other words, P0 represents the starting point, and PX represents the ending point.

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AMD GPU DIAGNOSTIC - EASY MODE

Undervolting, power limit -10(or -15)%, default CORE frequency
Normal, power limit +0%, max CORE frequency
Overclocking, power limit " +10(or +15) %, max CORE frequency

As you can see, every item in the list comes with a very detailed description of the settings that each preset emphasizes.

To sum up, to launch the diagnostics, the user simply selects a preset and clicks the button with the checkmark icon.

Important note:

Important note 2:

The maximum or minimum power limit is determined solely by the graphics card manufacturer.

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AMD GPU DIAGNOSTIC - SETUP

The diagnostics for AMD graphics cards is a sequential mechanism for identifying stable values for both VRAM and the CORE. Fortunately, there are very few settings, so even a junior-level user can configure everything quickly and accurately.

The Preset settings provide templates for a faster and more intuitive interaction with the user interface. There are three available presets:

UV – for moderate undervolting,
DEF – for no change in power consumption, and
OC – for maximum overclocking permitted by the graphics card manufacturer.

MEM test time and CORE test time determine the duration of testing during the step. 1 = 60 seconds.

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AMD GPU DIAGNOSTIC - SETUP

ADDITIONAL POWER TUNE & TWEAKS is a special menu with advanced professional settings available exclusively for RX 6000 series GPUs. According to AMD’s policy, newer GPU generations offer limited overclocking capabilities.

MVDD and VDDCI max control the voltage (in mV) for VRAM.

MVDD (VRAM voltage) can be reduced within a range of -25 mV to -100 mV relative to the value observed during the first launch.

VDDCI (I/O bus voltage) max allows voltage reduction of up to -50 mV.

Soc offset adjusts the SOC voltage (in mV) of the GPU, with a range of -25 mV to -75 mV.
Tweaks include various internal driver settings that can provide a slight performance boost of a few percent.

Important note:

Please note that by default, all the listed values already have a slight offset relative to the base parameters. If you reduce these values too aggressively, you may experience GPU driver crashes or system instability.

It is recommended to lower the values gradually, in small increments (25 mV), with stability checks after each adjustment.

Important note 2:

When hovering over a setting, tooltip hints appear, displaying the default values. This allows for a quick reference to the baseline parameters before making any adjustments.

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AMD GPU DIAGNOSTIC - SETUP

To the right of the ADDITIONAL POWER TUNE & TWEAKS section, you will find a small table labeled FAN CURVE, which allows you to edit the video card’s fan curve if needed.

MEM FREQ and CORE FREQ – These represent the initial frequencies for VRAM and CORE, respectively.

CORE VID – The initial voltage for the graphics card core.

Power offset – The offset of the maximum power limit relative to the factory settings. The maximum and minimum values depend on the graphics card manufacturer.

Important note:

For example, if you do not want to perform VRAM testing (i.e., if you don't want to search for the maximum stable VRAM frequency), setting the MEM test time to 0 will disable it.

Important note 2:

A value of 0 in the CORE FREQ field means that the algorithm will automatically determine the optimal core frequency.

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AMD GPU DIAGNOSTIC - TUNING PROCESS

The user always has the option to stop or pause the diagnostics by using the corresponding buttons, as indicated on the slide.

Important note:

For the most accurate results, it is recommended not to interact with the system at all while the diagnostic process is running.

Important note 2:

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RX-TUNER - TAB

RX-TUNER is the control panel for managing AMD GPU settings and profiling. On this tab, users will find all the necessary tools to overclock their adapter or create customized settings for specific games.

RX-TUNER supports unlimited profiling for up to 6 adapters simultaneously. Each adapter within each profile offers settings for fans, power, voltages, frequencies, and timing presets, as well as a wide range of hidden options (only for RX 6000) such as memory voltage, curves, and more.

A bit lower, in the Adapter row, the adapter’s index and name are displayed. Additionally, the user can scroll through available adapters for convenient configuration.

Further down, you will see the RX-TUNER enable/disable button along with a status bar that shows the current activity of RX-TUNER. In my example, the status is Disabled, which means that everything is turned off.

At the very bottom, there are buttons to save the current profile settings, activate PowerPlay settings (only for RX 6000), as well as standard buttons for creating a backup, loading a backup, or resetting all profiles to their default state (i.e., deleting everything).

Important note:

Switching adapters or profiles automatically updates the current GPU settings in the corresponding sections.

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RX-TUNER - SECRET SETTINGS

RX 6000 series graphics cards come with a very attractive bonus—a huge number of hidden settings under the code name PowerPlay Tables. You may also have seen these in the well-known application More Power Tool (MPT).

The user has the ability to set power limits, domain frequencies, VRAM subsystem voltages, curves, and even choose the curve model. These settings are applied by simply pressing the button with the lightning icon. After that, the user will have a choice: either manually reboot the system or let HYDRA handle the reboot. In the latter case, HYDRA will automatically restart the video adapter driver within 7-8 seconds.

If the GPU profile is already active, there is no need to reactivate it after the driver reboot—HYDRA will do this automatically.

Important note:

During the automatic driver reboot, all third-party applications and games must be closed. Otherwise, these applications or games will be forcefully terminated.

Important note 2:

The modular system also allows you to reset only a part of the parameters to their default state. To do this, use the DEFAULT button. Of course, you must then apply the settings by pressing the button with the lightning icon.

Important note 3:

Always pay attention to the indicator buttons. If you notice that the disk or lightning icons are highlighted, it means that there are unsaved or unapplied changes.

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SPECIAL THANKS

DRAM SECTION

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DRAM DIAGNOSTIC - PREPARATION

SPECIAL THANKS

DRAM DIAGNOSTIC is a module that automatically tunes the timings for a specific type of memory based on the selected voltage and desired frequency. Essentially, it’s like having a professional overclocker—with years of experience optimizing memory settings—working on your system. Sounds great, doesn’t it? However, before you take advantage of this marvel, you need to complete a few basic steps that will help prevent issues and save you from having to search for answers in the Discord support channel.

Basic Steps in UEFI (BIOS):

Reset All DRAM-SOC settings to Auto:

This includes timings, voltages, and ODT. Remember to also reset Nitro (for DDR5) and CLDO VDDP. Deactivate any XMP or EXPO preset. It is crucial not to overlook any setting, as missing one may cause the DRAM tuning process to fail to start.

Adjust for DDR5:

Context Memory Restore and TSME are disabled.� Set REFI and Gear Down Mode (optional).

Adjust for DDR4:

Set the desired DRAM VDD, which is the voltage at which you intend to perform the tuning.

Important Note:

If you are using AMD CO, please keep in mind that if even one core exhibits unstable values, the entire DRAM tuning process may terminate unexpectedly.

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DRAM DIAGNOSTIC - SETUP

SPECIAL THANKS

If you have followed the previous step for preparing DRAM for diagnostics (tuning), you will see a green message that reads "Diagnostic status: ready". If the message is red, it means that something was done incorrectly.

The menu displayed on this slide is the main window for configuring the DRAM tuning process. Most of the settings presented here are interdependent, so don’t be surprised if changing one setting causes another to adjust as well.

In 99% of cases, everything HYDRA proposes on this page is already optimal and does not require further action. However, there are a few things that the user must do:

Select the DRAM IC: Choose the specific memory chips that make up your DRAM.
Set the Target Performance: Specify the desired DRAM speed (in MT/s).
Choose the Initial DRAM VDD Voltage: This voltage determines both the starting timing values and the final targets that the tuning process will attempt to achieve.

Next, the user has two options:

Start the diagnostic process by clicking the check-mark button, or
Fine-tune additional important settings that may be useful in certain scenarios.

If you're interested in learning more about these additional settings, the next slide will provide a detailed explanation.

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DRAM DIAGNOSTIC - SETUP

SPECIAL THANKS

In the table located in the upper-left corner, the timing values that will serve as the starting point for the tuning process are displayed. The user has the option to modify these values as desired; however, if the changes conflict with the internal tuning rules, they may be disregarded.

In the upper-right corner, you will find options such as HCI %, Pi cycles, and VT3 cycles — these settings control the execution time for a series of stress tests. In other words, each tuning step is verified using these three stress tests.

If desired, you can reformat the testing template—for example, you can completely disable a specific test by setting its value to 0.

In the lower-right corner, the user will find settings with the UV prefix, which relate to undervolting. The main function of these settings is to perform undervolting on various components after all the timings have been configured. This is very useful for improving system stability while simultaneously reducing component temperatures.

The user also has access to voltage adjustments (DRAM VDDQ, SOC VDDCR, MC VDDIO and CLDO VDDP) for various domains, which can enhance stability or enable higher DRAM frequencies. In any case, remember that a higher voltage does not necessarily mean better performance—in many cases, it can have the opposite effect.

Another important setting is Auto ODT, designed specifically for situations where the DRAM remains unstable regardless of voltage and timing adjustments. The essence of this setting is to automatically determine the optimal values for ProcODT and DramDqDs so that the diagnostic process can successfully pass all stress tests.

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HYDRA 1.8H PRO

DRAM DIAGNOSTIC - SETUP

SPECIAL THANKS

The final settings I want to discuss are Power Down and Nitro. The first option primarily reduces latency by disabling various power-saving systems. The second option is responsible for tuning the data bus. This is a very important setting that can either boost performance—albeit at the cost of reduced headroom—or enhance stability while only slightly affecting performance; it’s a bit like a seesaw. In most cases, HYDRA will automatically recommend the optimal configuration for the selected DRAM MT/s. If you wish to create an additional safety margin, choose a Nitro value that is higher than the recommended setting (i.e., larger numbers).

In the lower-left corner, there is a mini-assistant that provides various tips which the user can scroll through.

If you have altered the settings beyond recognition and wish to revert to the default configuration, simply click the button with the eraser icon. This button resets all settings to their default values as determined optimal by HYDRA.

Important note:

Since DDR4 is a simpler type of memory, the number of settings available in HYDRA is significantly fewer. Therefore, do not try to find options that are intended for DDR5.

Important note 2:

The user only has access to the key timings. All other timings that are not directly presented are calculated based on these key timings to enhance both stability and performance.

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HYDRA 1.8H PRO

DRAM DIAGNOSTIC - TUNING PROCESS

SPECIAL THANKS

After the user confirms the start of the DRAM diagnostic (tuning) process, the system will reboot to apply all settings and begin stress testing. On this slide, you can view the log that displays the current DRAM settings. All information regarding the progress of the tests or any errors will be recorded in this log.

Please note that the process may take a long time, as HYDRA sequentially verifies the stability of timing groups and other settings—it can last 5 hours or more.

The key point is: do not interact with the system, do not run any applications, and even avoid using your browser during this process. Otherwise, if there is insufficient memory, you may compromise the entire test result.

Also, don't worry if HYDRA reboots the system after every step—this is completely normal, as the system needs to restart to properly apply the settings.

If you urgently need to use your computer, you can press the PAUSE button to temporarily suspend the process.

Pressing the STOP button completely halts the diagnostic process; however, it does not reset the memory settings to their default values.

Important note:

When the diagnostic process is completed, the user will be informed via the log. The optimization results will remain in effect and will not require reactivation.

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HYDRA 1.8H PRO

DRAM CALCULATOR FOR RYZEN (DCFR)

SPECIAL THANKS

DCFR is an evolutionary step beyond the DRAM Calculator for Ryzen. The new version offers advanced DRAM monitoring, automatic detection of memory ranks and module count, and the ability to apply either preset or custom values with a single click. It also supports DDR5 memory.

The primary goal of this module is to help users optimize their memory settings to achieve additional performance gains in various scenarios or to correct misconfigurations from previous setups. One of the simplest methods for memory tuning is to use the built-in presets. Users have access to two options: FAST PRESET and OPTIMAL PRESET. The only difference between them is that the OPTIMAL PRESET provides improved stability (with minimal loss of performance).

To receive a preset suggestion from HYDRA, the user must first select the DRAM IC (chip type) and the desired Memory Speed (MT/s), and then click on either the GET OPTIMAL PRESET or GET FAST PRESET button. After this action, the columns labeled "Preset" will display the recommended values.

At this stage, the user has the option to activate the preset by clicking the APPLY SETTINGS button, or to manually adjust some values and then press APPLY SETTINGS.

Important Note:

The APPLY SETTINGS button only becomes active when the user modifies at least one value in the table column labeled "Preset."

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HYDRA 1.8H PRO

DRAM CALCULATOR FOR RYZEN (DCFR)

SPECIAL THANKS

Presets cannot guarantee that your DRAM will operate exactly as specified due to a number of technical reasons. That’s why there is an alternative tool to help you fine-tune your settings more efficiently – manual tuning. Changing individual parameters is straightforward, thanks to an intuitive interface and built-in assistants that guide you through the proper sequence.

The voltage input fields are equipped with protective safeguards to prevent any damage to the processor or DRAM.

The CHECK / UNCHECK TIMINGS function allows you to verify the user-defined timings in the system for any inconsistencies or calculation errors. The status is displayed using three colors – green, yellow, and red.In other words, if the value is displayed in green, it means you are using the optimal setting; if it is yellow, there is still room to lower the value; and if it appears in red, the value is set incorrectly. Please note that the accuracy of this check depends on the selected chip type; in my case, it is Hynix M-die.

Important note:

For the presets to be applied correctly in UEFI (BIOS), all DRAM settings must be set to Auto mode. If any DRAM setting is not in Auto mode, HYDRA may be unable to modify it. Additionally, some motherboards might restrict voltage adjustments—in such cases, the user will need to make the necessary changes manually (only applies to DDR4).

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HYDRA 1.8H PRO

DRAM CALCULATOR FOR RYZEN (DCFR)

SPECIAL THANKS

Regarding manual adjustments instead of using the provided presets, it’s very simple: you simply change the value in the "Preset" column of any table to your desired value, and that's it. Once the APPLY SETTINGS button becomes active, you can apply these changes.

For example, I modified several settings: VDIMM (DRAM VDD), VDDQ, CL, and Nitro.

Important Note:

For all the modified settings to take effect, HYDRA will reboot the system. This reboot process always takes some time—for example, with DDR5 memory, it can take several minutes.

Important Note 2:

If you notice that the system becomes unstable after toggling the settings, disable the Memory Context Restore function in UEFI (BIOS). This will allow the system to properly “train” itself on every startup.

Important Note 3:

You might be wondering where all these settings are "sent." You can find everything in the UEFI (BIOS) menu under the label AMD Overclocking.

Important Note 4:

Additionally, it is possible that your system may fail to boot. This issue is not always due to a problem with the DRAM or the memory controller located on the CPU; it is more likely caused by an issue with AGESA (microcode).

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HYDRA 1.8H PRO

DRAM BENCH

SPECIAL THANKS

Have you completed DRAM diagnostics or found a new preset on the forum? Great, then let's test its effectiveness. To do this, I have updated the built-in benchmark called DRAM BENCH. Unlike AIDA and other benchmarks we are accustomed to using, the set of tests in DRAM BENCH is capable of assessing real performance, not just theoretical.

During the development of this test suite, special attention was paid to ensuring that the results are highly sensitive to even the smallest changes in timings.

The test suite consists of:

MemBench – Measures the speed of executing a series of tasks. The results are expressed in seconds.
Random Access Rd/Wr – Evaluates the performance of random accesses to DRAM when handling data volumes that exceed the cache capacity.
DRAM Latency – Provides a realistic assessment of latency (true random access) by disabling hardware prefetchers. It shows the delay from the moment of a "cold call," without assembler optimizations and without the use of complex instructions such as "prefetch" or "streaming store." In addition to the numerical result displayed in the table, a graph is provided that illustrates latency relative to the size of the data packet.
CORE DRAM Rd/Wr/Cp – Measures the actual throughput between an individual CPU core and DRAM.
CCD DRAM Rd/Wr/Cp – Measures the actual throughput between an entire CCD and DRAM.

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HYDRA 1.8H PRO

DRAM BENCH

SPECIAL THANKS

To simply test your current DRAM settings, just press the DRAM BENCH button located on the TESTS page. Once pressed, the testing process will begin and take approximately 10 minutes. All changes and the progress of the test will be displayed on the LOGGING page, and when the test is complete, HYDRA will automatically display a window with graphs and tables.

Additionally, the user can compare the results of their experiments. To do this, simply run a few experiments and then select from the dropdown list the experiment against which you want to compare the current (or the most recent) result.

For example, I performed a test using the EXPO preset, and then, after modifying the RDWR and WRRD timings, I conducted another experiment and selected the date of the first experiment for comparison.

As you can see in the upper-right corner, the timings have changed – they are displayed in green along with a negative number indicating how much they have changed. In this context, green is a positive sign.

In the table at the bottom, you can also see green values, numbers, and percentages showing how much the result has improved merely by adjusting two timings.

On the graph, the colors represent the memory regions: yellow indicates L2 cache, orange represents L3 cache, and red corresponds to DRAM.

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HYDRA 1.8H PRO

DRAM BENCH

SPECIAL THANKS

Additional features available in the results viewing mode include the ability to scroll through experiment results using buttons with arrow icons, as well as the option to delete the currently displayed experiment by clicking the button with the trash bin icon.

Important note:

In comparison mode, if the color in the results table is white, it means that the fluctuation does not exceed 0.25%—which is considered to be within the measurement error.

Important note 2:

Keep in mind that DRAM performance is measured not only by latency; there are many metrics presented on this slide. Good latency does not necessarily guarantee the highest FPS or overall performance. A comprehensive approach is required for proper evaluation.

Important note 3:

If the preset being tested is unstable, no results will be generated for the user.

Important note 4:

In most cases, the percentage change in the MemBench value accurately reflects the actual change in FPS in games.

Important note 5:

Processors that do not support AVX2 instructions are not supported.

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HYDRA 1.8H PRO

PING PONG BENCH

SPECIAL THANKS

Another equally interesting test suite introduced in this update is PING PONG. It is designed to evaluate inter-core communication, specifically how quickly a core from one CCD can communicate with a neighboring core or with a core residing on another CCD. This test suite can highlight architectural weaknesses that affect the utilization of all cores under high-intensity workloads or simply the quality of FCLK-CPU overclocking.

After you press PING PONG BENCH (TESTS tab), a relatively long benchmarking process will begin. After several minutes of waiting, the test results will automatically appear in front of you as a colorful table filled with numbers. It’s easy to deduce that the redder the color, the poorer the result, and the greener the color, the better the result.

The control interface is very simple: in the upper-left corner, you will find buttons to scroll through the experiments, while in the upper-right corner there is a dropdown list of metrics. Changing these metrics will update the visualization of the experiment results.

Perhaps the most interesting metric enabled in my example is MED (median), as it best reflects the actual state of performance.

Important note:

Overclocking the CPU cores or FCLK can dramatically alter the results. Additionally, other system tweaks—such as adjustments to the C6 state—may also impact the outcomes.

Important note 2:

The new BIOS can also have a profound impact on the results, potentially even causing issues.

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PROJECT HYDRA

OC-SANDBOX FOR AMD & NVIDIA ECO-SYSTEM

NEW FEATURES EVERY MONTH

1USMUS 2021-2025

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HYDRA 1.8H PRO

HYBRID OC - WORKING WITH PROFILES

Each of the profiles you see in the table is designed to work with a certain number of threads and a certain load. Each profile has its own individual voltages, a so-called “base” frequency for each CCD and the ability to work in dynamic or static mode. Of course, all of the above can be set by the user himself.

If the user wants to change a value or a dynamic state, simply edit the value. When you start editing the profile, HYBRID OC will automatically turn off to avoid problems.

To help the user adjust the voltage, there is a color indication. My recommendation is orange for low-threaded profiles and green for multi-threaded profiles.

The frequencies for CCD1 and CCD2 are the start frequencies through which the profiles are switched so that the system is stable in all conditions. If the Dynamic state is enabled, it means that the profile is able to ramp up and down frequency in real time, depending on the load. Unlike AMD boost, HYBRID OC technology is able to control the frequencies of each CCD individually.

An important note. I recommend to run a profile rebuild after each manual change of voltages in the profiles. To do this, run the diagnostics with only one item enabled - PROFILE CREATION. This procedure will not take more than a minute.

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HYDRA 1.8H PRO

HYBRID OC - WORKING WITH PROFILES

It is also possible to disable the use of the profile. In this case instead of this profile the standard AMD boost will be used, with or without PBO2, depending on whether Using PBO2 is enabled in the AMD PBO2 tab.

I suggest that you consider the following example, which you see on the picture:�

I disabled the 1T-4T profile because I like the way the AMD boost works on my CPU for tasks that don't use more than 4 threads (the name of the profile describes the number of threads for which it exists). Note that the boost will be limited by the temperature value - 82 degrees.
I also disabled dynamic mode for the �ALL (GAME) profile, I don't want the CPU frequency to change while playing.�

That is, the user has the ability to build something of his own from “LEGO”.

The CUSTOM#1 and CUSTOM#2 profiles assignment implies that you attach your own profile to one of the applications, which will be activated when you run the corresponding application. I will talk about them in more detail on the next page.

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HYDRA 1.8H PRO

HYBRID OC - HOC CO TABLE

As mentioned earlier, the Auxiliary CO Table is a table that is essentially a correction table for AMD Curve Optimizer. Also this table also contains the maximum allowable stable frequency for each core.

All values here are the “heart” of control for all HYBRID OC profiles. The user can manipulate data in real time without disabling HYBRID OC. A CO change within ten milliseconds will be accepted and the user can see the frequency change (or not). Increasing CO will increase the frequency, decreasing CO will decrease the frequency. It's simple here. Step size ? My recommendation is a step of 5-10 units. If you enter a too high value, the system will reboot and the settings will return to the state of the previous save.

CO LT - controls the HYBRID OC boost for low-threaded profiles. For Ryzen 9 - 1T-6T(8T), for Ryzen 5 and Ryzen 7 - 1T-4T.� CO MT - controls the HYBRID OC boost for multi-threaded profiles, i.e. for all other profiles that are not listed in the paragraph above.

Max - defines the maximum frequency of which the active core is not allowed to exceed. Roughly speaking, it is an “emergency brake” on frequency increases in low-threaded loads. Otherwise, the boost under no-load conditions may cause the system to reboot.

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HYDRA 1.8H PRO

HYBRID OC - STATUS INDICATORS

The data tables are also able to show the user which profile is currently active, as well as CO values that are the “bottleneck” of the system.

In my example, core 2 and core 9 prevent further frequency ramp of the current profile (if dynamic mode is enabled). It is not worth fighting this phenomenon because changing the CO values will not improve the quality of the cores.

This indication can also help you to debug profiles if you observe stability problems. It is enough to reduce the highlighted value step by step (step 5 - 10) or to reduce the CO value for the core number that is causing the failure (HYDRA ASSISTANT will tell you after reboot).

In any case, you are free to conduct your own experiments.

You may also notice that the numbering of the cores has a scarlet background - this means that all those cores are doing some work.

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HYDRA 1.8H PRO

HYBRID OC - CRASH THE SYSTEM

Sudden system reboots are among the most unsettling and mysterious events. HYDRA ASSISTANT was introduced to simplify troubleshooting, but before we review its suggestions, let's consider the possible causes:

An excessively high CO value in the AMD PBO2 tab or in the HOC CO Table (within the HYBRID OC tab).
The user manually set the maximum core frequency too high in the HOC CO Table (found in the HYBRID OC tab).
The user did not recreate the profiles after changing the profile voltage (VID) or CO values.
The base frequency for some profiles is set too high.
The enabled Dynamic profile VID for LT (or MT) is not capable of handling the current user scenario.

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HYDRA 1.8H PRO

HYDRA ASSISTANT

I think many of you may have been frightened by the list of possible causes, so in this regard all changes will be done by HYDRA ASSISTANT instead of you (you can too, if you give an answer - ignore help). The user is still required to give a correct answer, as before, which describes what the user was doing before the failure occurred. As a result, HYDRA ASSISTANT will automatically change the parameters for the core or cores that caused the failure (this information is provided by the OS) and saves changes. All the changes HYDRA ASSISTANT will make can be seen on the LOGGING tab, a kind of "cheat sheet" for you.

As optional steps, the user may be prompted to:�

Re-create the profiles because the CO has changed.
Clean the log of the operating system from the error records, so that in the future when you restart HYDRA you will not be prompted to corrected errors again, that have been recently corrected.

� I would like to note that the HYDRA ASSISTANT is quite flexible and allows you to solve problems for:�

HYBRID OC
AMD PBO2

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