Revision BIOS Tweaking Guide

Generally meant for ASUS ROG BIOS, but can be used as a guideline/reference for other BIOS’.

Improves latency, performance and overclocking capabilities.

NOTE: Depending on the version of BIOS you have, you may find some of the settings listed elsewhere.

Credits

Any contribution will add you to the credits list.

Tool

  • Setup Animator - [Disabled]
  • Asus Armory Crate
  • Download & install Armory Crate app - [Disabled]

Boot

Boot Configuration

  • Fast Boot - [Enabled]
  • You may want to disable this if it affects USB port connectivity (mouse, keyboard etc.).
  • May lead to increased latency on older boards if [Enabled].
  • Boot Logo Display - [Auto]
  • 3-7 sec
  • Boot up NumLock State - [Enabled]
  • Above 4G Decoding - [Disabled]
  • Wait For 'F1' If Error - [Enabled]
  • Option ROM Messages - [Enabled]
  • Interrupt 19 Capture - [Disabled]
  • Setup Mode - [Advanced Mode]
  • AMI Native NVMe Driver Support
  • [Off] ([On], if using NVMe SSD)

➤ CSM (Compatibility Support Module)

Compatibility Support Module Configuration

UEFI (GPT): <- Recommended

Launch CSM - [Disabled]

UEFI/CSM (GPT/MBR): <- Compatibility

Launch CSM - [Enabled]

  • Boot Device Control - [UEFI and Legacy OPROM]
  • Boot from Network Devices - [Ignore]
  • Boot from Storage Devices - [Ignore]
  • Boot from PCI-E/PCI Expansion Devices - [UEFI driver first]

Legacy (MBR): <- usually for older systems

Launch CSM- [Enabled]

  • Boot Device Control - [Legacy OPROM only]
  • Boot from Network Devices - [Ignore]
  • Boot from Storage Devices - [Ignore]
  • Boot from PCI-E/PCI Expansion Devices - [Ignore]

➤ Secure boot

OS Type - [Other OS]

➤ Key Management

PK Management - [Delete  key]

KEK Management - [Delete  key]

DB Management - [Delete  key]

DBX Management - [Delete  key]

Boot Option Properties

  • Boot Option #1
  • (Select your main OS drive)

Advanced

➤ CPU Configuration

Hyper-Threading

  • [Enabled] <- Recommended for people with less than 6 cores (CPU)
  • + Best for rendering and processing
  • + Better streaming capabilities
  • + Newer technology
  • - Slightly worse latency
  • - Higher CPU temperatures
  • - Lower FPS in some games, depending on game engine
  • - Prone to stuttering in some cases
  • [Disabled]
  • + Better latency
  • + Lower temps
  • + Higher FPS, depending on game engine
  • + Less stuttering (in most games)
  • + Better overclocking capabilities
  • ~ Usually beneficial for CPUs with 6 cores and above
  • - Worse rendering and processing performance
  • Hyper-Threading example:
  • Battlefield multiplayer games benefit from Hyper-Threading Enabled.
  • The benefits of Hyper-Threading, or lack thereof, heavily depends on the game engine.

 

Thermal Monitor - [Disabled]

Active Processor Cores - [All]

Intel Virtualization Technology - [Disabled]

  • Needed for 64 bit Virtual Machines

Hardware Prefetcher - [Enabled]

  • [Disabled] may lead to better multi core performance, at the cost of worsened single core performance.

Adjacent Cache Line Prefetch - [Enabled]

  • [Disabled] may lead to better multi core performance, at the cost of worsened single core performance.

Boot performance mode - [Max Non-Turbo Performance]

SW Guard Extensions (SGX) - [Disabled]

Tcc Offset Time Window - [Disabled]

➤ CPU - Power Management Control

Intel(R) SpeedStep(tm) - [Enabled]

  • No need to disable this, as it no longer affects overclocking like back in the day.
  • With SpeedStep disabled, some boards may not be able to lower the frequency at all and in others it limits the frequency steps.

CPU C-States - [Disabled]

  • Reduces latency a lot!

CFG Lock - [Disabled]

Intel(R) Speed Shift Technology - [Disabled]

Execute Disable Bit - [Disabled]

➤ Platform Misc Configuration

Platform Misc Configuration

PCI Express Native Power Management - [Disabled]

PCH - PCI Express

PCI DMI ASPM - [Disabled]

ASPM - [Disabled]

L1 Substates - [Disabled]

PCI Express Clock Gating - [Disabled]

SA - PCI Express

DMI Link ASPM Control - [Disabled]

PEG - ASPM - [Disabled]

➤ System Agent (SA) Configuration / Memory Configuration

VT-d - [Disabled]

Memory Remap - [Enabled]

➤ Graphics Configuration

Primary Display - [PEG]

iGPU Multi-Monitor - [Disabled]

➤ DMI/OPI Configuration

DMI Max Link Speed - [Gen3]

➤ PEG Port Configuration

PCIE_X16/X8_1

PCIE_X16/X8_1 Link Speed - [Gen3]

PCIE_X8_2

PCIE_X8_2 Link Speed - [Gen3]

PCIE Spread Spectrum Clocking - [Disabled]

➤ PCH Configuration

➤ PCI Express Configuration

PCIe Speed - [Gen3]

IOAPIC 24-119 Entries - [Enabled]

  • Reduces interrupt latency.

➤ PCH Storage Configuration

Hyper kit1 Mode - (Disable if you don’t have one)

SATA Controllers - [Enabled]

SATA Mode Selection - [AHCI] <- RAID is unreliable and usually bad for gaming

S.M.A.R.T. Status Check - [Disabled]

Aggressive LPM Support - [Disabled]

Hot Plug - (Disable on all drives)

➤ Thunderbolt(TM) Configuration

Thunderbolt(TM) Support - (Disabled if unused)

Thunderbolt(TM) PCIe Support - (Disabled if unused)

➤ PCH-FW Configuration

➤ PTT Configuration

TPM Device Selection - [dTPM]

PTP Aware OS - [PTP Aware]

➤ Onboard Devices Configuration

HD Audio Controller - (Disable if using USB audio, otherwise leave Enabled)

DVI Port Audio - [Disabled]

PCI-EX16_3 Bandwidth - [x4 Mode]

  • You may need to use [M.2 Mode] if your OS can’t detect your M.2 SSD.

M.2 Configuration - PCI mode

Hyper M.2 x16: - [Disabled]

USB Power Delivery in Soft Off State (S5) - [Disabled]

Asmedia USB 3.1 Controller - [Enabled]

  • Use USB 2.0 ports for peripherals (mouse and keyboard).

Intel LAN Controller - [Enabled]

  • Intel LAN PXE Option ROM - [Disabled]

Connectivity Mode (Wi-Fi & Bluetooth) - [Disabled]

Wi-Fi - [Disabled]

  • Wi-FI has significantly more latency (and slower speeds) than LAN.

Bluetooth - [Disabled]

Serial Port - [Disabled]

➤ APM Configuration

ErP Ready - [Enable(S4+S5)]

  • Enabled state makes your PC use less power in shutdown state.
  • If Enabled USB ports, power on by mouse/keyboard will not work when shutdown

Restore AC Power Loss - [Power Off]

Power On By PS/2 Keyboard - [Disabled]

Power On By PCI-E/PCI - [Disabled]

Power On By Ring - [Disabled]

Power On By RTC - [Disabled]

➤ PCI-E Subsystem Settings

SR-IOV Support - [Disabled]

➤ Network Stack Configuration

Network Stack - [Disabled]

➤ USB Configuration

Legacy USB Support - [Disabled] (enable this to install windows in legacy mbr with usb)

  • Enable this when installing Windows in Legacy MBR (disable after installation)

USB Keyboard and Mouse Simulator - [Disabled]

XHCI Hand-Off - [Disabled]

Extreme Tweaker

ASUS Multicore Enhancement - [Enabled]

  • Use [OFF] if you’re doing a manual overclock.

➤ Internal CPU Power Management

Intel SpeedStep - [Disabled]

Turbo Mode - [Enabled]