Strange temps on my R3/970

[MartinSLG]

Hello,

First of all. I would like to say hello to a great forum and and great site!

Then the other part:

I have been doing some overclocking on my i7 970 and have run into a few bumps,

Firstly, the CPU temperature shown in asus AI-tuner is about ten degrees BELOW ambient, for example, when i have about 20degrees ambient my cpu shows about 10-12... (it even shows a lower temp on the cpu then on the NB)

Then when i open up coretemp or speedfan for example to see the individual core temps they seem allot more reasonable, at about 25-30 degrees idle and 60-65 on 100% load. Fine i thought, but when i started looking closer, especially on one particular core (#4 btw) the temp is about ten degrees higher than the others.

Could this be air bubbles in the thermal paste or something?

Then, there is one more thing. I have been doing some overclocking and when i followed the youtube review a 200 BCLK was suggested with a *20 multiplier, i tried that and after bumping the QPI & Vcore up to 1.3 it worked, Then i thought i'd go for 4.2ghz and bumped the multiplier up to 21 and Vcore to 1.35 and that too stabilized (around 70deg avg temp).

But then i seem to have hit brick wall. I simply cant get it to run stable at 4.4 with 22 multiplier. Even with the QPI at 1.4, Vcore at 1.50 and Loadline calibration set to 100% it just keeps crashing. And the temps gets really nasty to (ofc with that high Vcore).

Any ideas on this one, i have also tried lowering PLL to about 1.65 as i heard it would help, but to no effect....

My system:

i7 970 under a NH-D14 (inside a rv02e)

ASUS R3 Black Edition

Corsair Dominator DHX DDR3 1600MHz 8gb (4*2)

gtx580

win7 64bit

Thanks!

 

[bluethunder]

i use cpuid hardware monitor for monitoring all of my temperatures, the discrepancy you are seeing between asus AI-tuner, speedfan, and coretemp could be because each is using a different thermal sensor, when you are overclocking and run into instability what is the bsod error code you are receiving? how are you checking for stability? how quickly does your machine crash when checking for stability? i have heard cpu pll can go up to 1.9v however i myself never let it go past 1.88v increasing that may help with stability there is also the clock gen tuner as it is called on my motherboard, or cpu amplitude, it eliminates noise cause by the high frequency of a overclock, increasing this value may assist you in becoming stable. in cpuid hardware monitor i also see a 10-12c difference in temperatures, i believe this is just due to how the load is distributed, when running prime95 though max load the temperature on the hotter core at idle isnt the highest temperature under max load so i dont think it would be a issue with thermal paste causing that i also heard rumor that there was a new bios update for your mobo, have you updated yet?