Official OC Leaderboard

Polo6RGTI said:

Run Cinebench and check the vdroop with CPU-Z. What is the LLC set to currently?

The repair screen is normal, I always just restart and run a disk check after Windows boots to the Desktop.

I usually use HWiNFO for my voltage readings but I will use for CPU-Z for a real time reading. LLC I think is on 4, probably need that higher. Are there any other settings critical to 5.2-5.3 on these chips? 5.3Ghz not even booting into Windows doesn't seem like a good start..

Kol12 said:

I usually use HWiNFO for my voltage readings but I will use for CPU-Z for a real time reading. LLC I think is on 4, probably need that higher. Are there any other settings critical to 5.2-5.3 on these chips? 5.3Ghz not even booting into Windows doesn't seem like a good start..

For 5.2GHz set the Vcore to 1.420V and the LLC to 6. If the PC can pass a quick benchmark start lowering the Vcore, but you need to constantly check for logged WHEA errors in Event Viewer(Place a shortcut on the Desktop). If a WHEA error is logged raise the Vcore again. I prefer to use Cinebench+CPU-Z to check the Vdroop and Prime95 v.29.4(non-AVX) 1344 FFT in-place for worker errors.

Here is a screenshot of the settings I used to determine that a Vcore of 1.300V was the best for a 5GHz overclock.

Thanks for the tips @polo. I will have another attempt at some stage and report back. 5Ghz looks like the sweet spot for daily running. Looks like only the very lucky chips can get 5.2Ghz @ 1.3v. I'm referring to this link you provided not too long ago: [Sammelthread] Intel Coffee Lake-S (Sockel 1151) OC-Ergebnis-Thread! KEIN Quatschthread!

@Kol12 at your most stabile OC, try upping your base clock a little at a time, instead of using the multiplier.
Doing this I was able to get 5189.86 MHz with one core no hyperthreading on !AIR! with my 6700K(not delidded)

Or if you can get a unstabile OC at a higher multiplier, start lowering the base clock(which I also might try on my 9900K @5.4GHz)..

If you just want to see how high you can go in CPU-Z you can also start turning off cores(less heat), but then try to use at least 2 cores, as when I did one core no HT, I was able to get into Windows no problem, but not back into BIOS(of course the motherboard allowed overclocking but wasn't really made for it): Official OC Leaderboard - Page 17 - Windows 10 Forums

Upped my base clock to 101.000
All eight cores baby!
(memory jumped up to 3905.6 too)
Intel Core i9 @ 5454.05 MHz - CPU-Z VALIDATOR

Cliff S said:

Upped my base clock to 101.000
All eight cores baby!
(memory jumped up to 3905.6 too)
Intel Core i9 @ 5454.05 MHz - CPU-Z VALIDATOR

Wow Great score Cliff, you finally beat my 8700 by 26 points....

I might have to beat your score....thinking about it...hehe

Upped the base clock to 101.54
Intel Core i9 @ 5483.05 MHz - CPU-Z VALIDATOR

Cliff S said:

Upped the base clock to 101.54
Intel Core i9 @ 5483.05 MHz - CPU-Z VALIDATOR

Ok...now cut that out...

Have to be careful with BCLK/FSB, that also raises IMC; PCIe and I/O clocks which can cause instability.