Getting the perfect stable oc.

[Wasty]

Hey all.

 

Running a 4790k

2 gtx 980s (sli)

with a kraken x61 cooler

& msi gaming 5 mobo

 

Currently having problems ocing my cpu. I cant get a stable oc over 4ghz.

 

I can have an oc running from 4.1-4.9ghz for 5-50 mins on intelburn. Burn my temps always spike from a stable 70c to 90c almost suddenly. 

 

I repeat the oc's are stable for a period of time then spike as such.

 

I also notice the same thing occurs when i dont oc at all and it turbo boosts up.

 

When i fix oc it at 4ghz it does the same but the spike takes over 4-5 hours to occur.

[Imakuni]

What did you set your voltage to?

[Wasty]

I havent touched the voltage at all. I think this is the issue, as i am inept at the msi bios.

[tom_w141]

Haven't touched means you left it on auto which can ramp the voltage crazy high, hence the high temps.

[Wasty]

Thank you! Confirmed what i thought? What settings should i be fiddling with on the msi bios to sort this mess out?!

[Wasty]

1 minute ago, tom_w141 said:

Haven't touched means you left it on auto which can ramp the voltage crazy high, hence the high temps.

Thank you! Confirmed what i thought? What settings should i be fiddling with on the msi bios to sort this mess out?!

[tom_w141]

5 minutes ago, Wasty said:

Thank you! Confirmed what i thought? What settings should i be fiddling with on the msi bios to sort this mess out?!

Using manual mode and setting the voltage yourself to find a stable OC. Stay around 1.3-1.35 max.

 

increase frequency -> test

 

-> pass? -> increase frequency again -> retest and repeat

 

-> crash? -> increase voltage -> retest and repeat until next crash

 

Happy with either voltage, frequency or both? -> set voltage to offset and give it slightly over what was stable (this is so it will downvolt when idle) e.g. if 1.3V was stable and the bios reports 1.2 set the offset to +0.125V.

 

EDIT: When talking about voltage here we mean CPU voltage or Vcore.

[Wasty]

 

1 minute ago, tom_w141 said:

Using manual mode and setting the voltage yourself to find a stable OC. Stay around 1.3-1.35 max.

 

increase frequency -> test

 

-> pass? -> increase frequency again -> retest and repeat

 

-> crash? -> increase voltage -> retest and repeat until next crash

 

Happy with either voltage, frequency or both? -> set voltage to offset and give it slightly over what was stable (this is so it will downvolt when idle) e.g. if 1.3V was stable and the bios reports 1.2 set the offset to +0.125V.

 

EDIT: When talking about voltage here we mean CPU voltage or Vcore.

Thank you very much for your help! I new i was missing something so obvious. Thanks again!

[Imakuni]

50 minutes ago, Wasty said:

Thank you! Confirmed what i thought? What settings should i be fiddling with on the msi bios to sort this mess out?!

Probably around the 1.2~1.25 mark. You can go a bit higher, but keep below 1.3 and you'll be fine.