Heya EVGA fellows
First off, I'm very happy with my P67 FTW motherboard
Here are my current components
Corsair AX850W Gold PsU
Corsair Vengeance DDR3 running at 2133 11-11-11-33 and 2x8GB
Corsair ForceGT 180GB SSD
Vdimm 1595 mV
Vcore 1330 mV
Vccio 1155 mV
Other voltages at stock settings, and bios settings disabled according to p67 overclock guide from this forum.
Running at 49x100.00 MHz
I'm working on making it 100% stable.
Tested the memory with the windows memtest app using 8 instances. Upped vccio until no more errors. (had to raise Vdimm from 1590 to 1595 to accommodate increased multi from 48 to 49) so memory is stable and looking good so far. Happy with that.
However, i'm not happy with the cpu part of the overclocking.
I usually increase the Vcore until i get no more blue screens when booting and then launching apps like FaH or LinX. Keep trying until I can run any of those for about 20-30 minutes withour blue screen.
Now, with a voltage of 1330mV I'm not getting any blue screens and linX can pass 5 cycles without erros and i can have FaH calculate for 12h without nothing to complain about... But Whenever I run Prime95 - i start getting an error with large FFTs.
What will I have to change? more Vcore ? (I'm afraid i end up with a too high Vcore as before when only using prime95 -> error -> increase vcore ... that strategy won#t work for me, since it won't tell me if it's a too low Vccio.)
I tried upping Vccsa or PLL a notch or two, but I can't seem to see any improvement.
Is 4.9GHz just too much for my cpu or am I just missing the right voltage adjustment (if so, WHICH voltage?)
EDIT: I dropped the voltage down to 1329mV (1328mV would cause LinX to produce error within the first run.)
So far, LinX passes (2-3 runs, I try to avoid running lots of runs with that), FaH folds for hours (tested 8+) without any issues and even Prime95 tortures with small FFTs for over an hour now without any issue. My next test will be the blend option in Prime95 as I have the feeling it might still be memory related (will try upping Vdimm to 1605mV and Vccio to 1165mV)
<message edited by florianuhlemann on Monday, June 18, 2012 12:33 AM>