Am I overclocking wrong?

[Manchu]

I've managed to get 4GHz at 1.3v on my 6800k, though I've seen other places reporting 4.2 at like 1.25v, which makes me think I'm doing something wrong. 4.1 was a no go at 1.3v. I have an ASUS X99 ROG, 16GB Corsair Vengeance 2666 (XMP is enabled) and an EVGA 650G2 PSU. I have the CPU voltage set to a manual 1.3v in the BIOS and a sync core multiplier of 40. I have touched nothing outside of what was changed by setting XMP to the 2666MHz profile. The only thing I can think of would be that the CPU is not actually getting the whole1.3v that is set in the BIOS or something? HWinfo says 1.31v when under max load. I'm not sure advanced when it comes to overclocking techniques so maybe there's something I'm missing.

[Izineth]

I'm not an overclocking expert by any means, but I would say you're not doing anything wrong.  Every chip is different on how much voltage it takes to reach a certain speed while remaining stable.  Some chips might not even be able to reach that speed.

 

Silicon Lotto my friend.

 

I looked it up and on a webstore that bins chips before they sell them. (they sell the good ones at a higher price).

Said store says 92% of 6800K that they tested reached 4.2 with 1.312v and only 73% of them reached 4.3 but it took much higher voltage for example.

Some times you win and some times you don't.

[Manchu]

Just now, Kawaii_Desu said:

I'm not an overclocking expert by any means, but I would say you're not doing anything wrong.  Every chip is different on how much voltage it takes to reach a certain speed while remaining stable.  Some chips might not even be able to reach that speed.

 

Silicon Lotto my friend.

Dang. Kinda sucks but that's what I was thinking. I read somewhere that it might help to play around with load line calibration so maybe that's what I'll try next. If not then I'll see how far I can dial the voltage back at 4GHz to get temps a bit lower.

[Guest]

OK so what are the temps then? How much headroom do you have?

[Izineth]

Sounds like a good plan to me.

It could be entirely possible that the voltage is drooping too far under load to stay stable.

[Manchu]

8 minutes ago, ShrimpBrime said:

OK so what are the temps then? How much headroom do you have?

Hottest I saw at 4.0 was 70C on core 2. The rest were mid 60s. I theoretically could push it a bit more I suppose.

 

10 minutes ago, Kawaii_Desu said:

Sounds like a good plan to me.

It could be entirely possible that the voltage is drooping too far under load to stay stable.

Yeah honestly not sure with that. HWinfo and CPU-Z say 1.31v VID under load but I'm not sure if those take into account that possibility.