8700k 5ghz Overclock Question

chrisloudon

Hi all,

Can anyone advise on where I should start looking for stability with overclocking my 8700k?

The setup is as follows:

8700k
Gigabyte Z390I ITX Mobo
2 x 8GB Corsair 3200Mhz DDR4 XMP2
EVGA GTX 1080ti
Corsair AX860i PSU
Corsair Obsidian 250D Case
EKWB CPU   GPU loop   240mm Rad   XRES 100 D5

I followed the tutorial in the link below to achieve what appeared to be a stable 5ghz overclock with a VCore of 1.33v

                               
The problem I am having is while Windows boots fine and the usual set of benchmarks and stress tests within 3DMark run without issue, Prime95 spits the dummy after only a few minutes of running resulting in a BSOD.

I understand that stress tests from the likes of Prime95 aren’t real world scenarios, but I would like to run it for an hour or so test my loop. CPU temps reach the mid to high 60s in the 10 mins Prime gets to run for, but I’d like to see how things fair after an extended test.

The question I have is should I continue to increase my VCore or dial back the multiplier a little? I’m fairly new to the manual overclocking scene so I don’t know how far I should push something before risking damage or calling it a day

Thanks.

Chris

techquest

Here's an interesting guide that might help, it's in written format instead oh Video, not for your specific MB but the principles are the same. Maybe it will help.

Coffee Lake OC Guide.pdf

Bigfingers

Increase your Vcore, I dont know what Turbo means on MSI LLC, I use ASUS boards, so that may need attention, you dont want to overshoot too much. Im running 5.2 @1.35v temps of 65 degrees @ full load with an ambient 22 degrees. My fans are set to zero though on both rads as I like silence. Dont worry about pump speed it makes no diffrence worth worrying about.
You really need to delid the CPU though.

techquest

Yes that's the interesting part and in the end comes down to if you don't mind negating any warranty you might have on the CPU. But if it does a better job of cooling then that's what you do.