|Stock + XMP||4,5 GHZ try 1 + XMP||4,8 GHZ try 1 + XMP||4,5 GHZ try 2 + XMP||4,5 GHZ try 3 + XMP||4,5 GHZ try 4 + XMP||4,5 GHZ try 5 + XMP||4,5 GHZ try 6 + XMP||4,5 GHZ try 7 + XMP||4,5 GHZ try 8 + XMP|
|CPU Ratio setting (max ratio)||auto||45||48||45||45||45||45||45||45||45|
|Internal PLL overvoltage||disabled||disabled||disabled||disabled||disabled||disabled||disabled||disabled||disabled||disabled|
|Intel speedstep technology||enabled||disabled||disabled||disabled||disabled||disabled||disabled||disabled||disabled||disabled|
|Intel turbo boost technology||enabled|
|turbo boost power limit||auto|
|short duration limit|
|long duration limit|
|long duration maintained (sec)|
|additional turbo voltage||auto|
|Core current limit||150||200||200||200||200||200||200||200||200||200|
|CAS# latency (tCL)||9|
|RAS# to CAS# delay (tRCD)||9|
|Row precharge time (tRO)||9|
|RAS# active time (tRAS)||24|
|Write recovery time (tWR)||12|
|Refresh cycle time (tRFC)||128|
|RAS to RAS delay (tRRD)||6|
|Write to read delay (tWTR)||6|
|Read to precharge (tRTP)||6|
|Four activity windows (tFAW)||30|
|Memory fast boot||auto|
|memory power down mode||auto|
|ODT WR (CHA)||auto|
|ODT NOM (CHA)||auto|
|ODT WR (CHB)||auto|
|ODT NOM (CHB)||auto|
|Power saving mode||disabled||disabled||disabled||disabled||disabled||disabled||disabled||disabled||disabled||disabled|
|CPU core voltage||auto||fixed 1.350||fixed 1.310||fixed 1.310||fixed 1.310||fixed 1.260||fixed 1.230||fixed 1.240||fixed 1.250||fixed 1.260|
|CPU load line calibration||auto||level 1||level 1||level 2||level 1||level 1||level 1||level 1||level 1||level 1|
|CPU PLL voltage||auto||auto||auto||auto||auto||auto||auto||auto||auto||auto|
|Startup||good||good, bus speed at 99,8, multiplier 16x (45x under load)||good, bus speed at 99,8. muliplier 16x (48x under load)||good, bus speed at 99,8, multiplier 16x (45x under load)||Idle voltage at 1.298||bus speed of 100.2 now :(|
idle voltage: 1.248
|bus back to 99.8...|
idle voltage: 1.216
|bus speed 100.1 :S|
idle voltage: 1.224
|idle voltage: 2.40|
|Burntest (10x 2gb run)||stable||All cores 100%, 63.3-64 Gflops. cpu usage dips between some of the runs, temps dip some aswell.|
Core #0 stays about 7C cooler than the rest.
Voltage changing between 1.352 and 1.360
|all @ 100% 65.5 to 68 Gflops.|
Voltage=1.312 or 1.320 (alternating a bit)
Temps too high, but continuing for good measure.
Result: stable (hot)
|Voltage drops to 1.208 or 1.216 under the load.|
|Load voltage at 1.312 or 1.320|
|Oddly Gflop numbers are down to 62.2 to 63. They should not drop when Ghz is the same, should they?|
Nevermind, they got back to near 64, might have been some background task taking CPU time.
|Result: stable||Result: stable|
|max temps (degrees Celsius)||46-51||64-73||65-75||55-62||63-71||60-68||60-67||61-67|
|Prime95 about 15 minutes||stable||All workers start without problem. (earlier attemps saw worker 1 fail right away)|
multiplier stays at 45x (earlier attempts saw it drop inexplicably while prime95 was running)
Voltage troughout: 1.352
Core #0 around 7C lower than highest, #3 4C lower.
|All workers start|
After 1 minutes, worker 1 (core #0) fails
Resulting sum is wrong. Other workers keep running. Temps in general drop 6-10C
|Worker #1 failed on startup, rounding error.|
|Despite a constant 100% load, temps seem to go up and down quite a bit, I have seen the current highest as 65 several times even though it tops out at 70|
|load voltage: 1.264 or 1.272|
|Load voltage: 1.232 or 1.240|
Worker #1 (core #0) failed after 4 minutes, rounding error.
|Load voltage: 1.240 or 1.248|
|Load voltage: 1.248 or 1.256|
|furmark + prime95 max temps||52-58||no point at this voltage||rounding error after 5 minutes|
|notes||Room temp about 17C starting the tests.|
Monitor software: CPU-Z 64bit 1.59 and Core Temp 1.0 RC3
CPU-Z seems to fail detecting the CPU the first time, but when restarted is always fine
|Multiplier = 16x at idle despite speedstep and power saving being off|
Loadline cal. lvl 1 chosen based on earlier results
|Voltage = 1,31V because I do not accept temps over 72C in such a cold room anyway.|
going back to 4,5Ghz. which seems more realistic to obtain around the 70C mark.
|Trying Loadline calibration level 2 to see if it is enough, this was not a success!|
Dropping voltage to 3.10V. will do finer tuning when point of instability is reached.
Ideally I want to see max temp on CPU-test of about 70C, since temp will rise come summer and with the GPU running.
Next attempt will again feature loadline calibration level 1.
At least this gives me some voltage numbers I know will be too low
|I would say the room temperature is probably up 1-2C since i started|
For future tests I will run prime95 first, then intelburntest, since prime95 seems to be the one showing off problems.
|trying BCLK of 100.2 just to get even 100 in CPU-Z|
Temperatures are starting to match my goal.
|going up a full 0.010 to give a chance that it will be stable for hours.|
I believe in this configuration, letting furmark and prime95 run for at least an hour.
20mins in, CPU max 66-73 GPU max 63
after 48 minutes, Worker #1 (core #0) has a rounding error.
CPU max: 67-74
GPU max: 63
temperatures are good, but core #0 seems less overclockable than the rest.
Aparently, furmark has been maxing out the core that is no longer running prime95.
Room temperature probably up a bit from 1½ hours of prime and furmark.
|Getting close probably, any 4.5ghz result at below 1.3V would be above average from what I have seen.|
The plan: leave computer priming at 1.260V tomorrow.