Issue after overclock of CPU

Deathon2wheelz · 19 Sep 2013 at 21:34

Hey guys, following the advice given to me on here, i OC'd my i7 920 to 4ghz.

It is stable with IBT through 20 passes, memory passes memtest86, yet to do an 8 hour P95 though.

It has been running fine, it is water cooled so the max temp under a 20pass IBT was 71 on the highest core.

The issue that is puzzling me, is that after being left off for a while, my bios says Oc failure. I go into my bios, change nothing at all and it boots ok after... What could the problem be?

I am using an asus p6t.

Thanks

SouthEastBlue · 19 Sep 2013 at 21:40

I had a problem like this ages ago when over clocking an old E5200 CPU, it was fine with two sticks of ram but with 4 sticks it sometimes wouldn't boot or fail on the over clock. Are you using all your ram slots?

Deathon2wheelz · 19 Sep 2013 at 22:36

Yeah mate.. I have 6 slots over 2 banks

wazza300 · 19 Sep 2013 at 22:42

It could be a cold boot issue,usually one/two clicks more dram v or dram/vtt cure it

Disable floppy drive a,that can cause startup issues sometimes even if your not using it

Deathon2wheelz · 19 Sep 2013 at 22:50

wazza300 said:
It could be a cold boot issue,usually one/two clicks more dram v or dram/vtt cure it

Disable floppy drive a,that can cause startup issues sometimes even if your not using it

I am on 1.64 dram v already.. Could try 1.66 i suppose..

The only boot device i have enabled is my ssd

wazza300 · 19 Sep 2013 at 22:57

1.66v = 1.648v in windows for dram and is perfectly safe,ran mine set to that for years

Deathon2wheelz · 20 Sep 2013 at 19:41

All sorted!

Cheers guys!

wazza300 · 20 Sep 2013 at 21:06

that's good

Deathon2wheelz · 21 Sep 2013 at 10:59

Yeah, happy with a stable OC of a 920 c0 at 4ghz... Think i could get more but my memory is holding me back i suspect... Still a 50% increase is good enough. Not bottlenecking my 670 which is cool.