Core i7/X58 Overclocking Thread

[mremulator]

I'm not sure if you can trust that or not, i passed 50 runs yesterday on linX (2hr 50min~) then proceeded to crash after 9hr of blend. I know it's 3hr vs 9hr but from what pretty much everyone says 10 mins of linpack is supposed to be more reliable than 10 hours of blend. I don't know why but i had a feeling this would happen, i'll probably be sticking with prime after all.

Have a look where prime crashes on blend... mine kept crashing on 4096 FFTs, however, ran 24/7 with small FFTs only. Therefore, I concluded that it was down to memory timings/voltage and not the CPU. So I raised the Vdimm a little and slackened off my RAM timings... it still crashed?? So... I lowered the BCLK from 200 to 190, now it's stable @ 4.0GHz (21x190) and it could only do 3.8 before. Yea I know it's still 3.8GHz for multi-threaded apps, however, I have an "A" revision chip and I'm happy with 3.8GHz stable for 24/7 use.

Try running a "custom" session of Prime with min/max FFT size set to 4096 for an hour and see what happens. The way I understand it is small FFTs for CPU testing and large FFTs for memory. So I run small FFTs (12 hours+), blend (12 hours+) and custom 4096 FFTs (1 hour). Then I consider it stable.