I5 3570k oc stable but wont resume from sleep

[Limitlass]

Hey guys,

I have an i5 3570k and a sabertooth z77 board.

Its oc'ed to 4.1ghz and stable. However when i put it to 4.2ghz it is stable but hangs for about 45s on sleep resume before it starts responding again. The voltage is set to offset. Any ideas of what is going on?

[Cacao]

What do you mean by stable? Did you run a stress test for several hours?

[Limitlass]

Yes i did, temps stay about 75 degrees on prime 95.

[xBlizzDevious]

How long did you run Prime95 for?

[Limitlass]

4hours

Even when I fiddle with the voltage it still happens. Doesn't happen at 4.1ghz though, only 4.2ghz

[xBlizzDevious]

Then run Prime95 for longer. I got problems on Prime95 after 41 hours. I recommend a minimum of 12, preferable minimum of 24. If you get no errors from 24 hours and you're still getting this problem, run for 48 hours if you can and if it's still got no problems, I have got absolutely no idea.

 

The other possibility, is that you've edited the C states in the BIOS and it's causing issues.

[Limitlass]

Yeah I looked into c states and I've just left them at default. I even reset my bios settings to make sure. Okay I will run prime for longer thanks. Also, should I use offset or manual voltage? What do you use?