Overclocking the i9 10900K

[Super panda]

Hi guys,

So a few days ago I got my i9 10900K, but I apparantly I lost the sillicon lottery with this one lol, I was able to achieve 5.1 Ghz semi stable ( only stable in games) at 1.36v using load line calibarition 4. I also overclocked the ring bus from 4.3Ghz to 4.6Ghz but that was about as high as I could go. I have seen a lot of ppl getting 5.2 Ghz eaisly on i9 10900K , so is mine just a bad sample of 10900K ? 5.2 is not even stable at 1.43v in my case so I didn't bother going higher with voltage. Also I didn't change the cpu VCCIO voltage and CPU system agente voltage, they are at default voltage but they seem a bit high to me :s just take a look at this ss: 

not sure if they are supposed to be at such a high voltage by default

the specs:

Asus ROG MAXIMUS APEX XII

i9 10900K

16 GB G.skill Trident Z 4133 Mhz CL19 (upgrading to a faster ram soon)

corsair h150i with thermal grizzly thermal grizzly kryonaut

cooler master h500p mesh case

corsair RM750X 750 watt psu

Looking forward to the reply's 

Thanks !

 

P.S In the picture I sent the CPU VCCIO is at 1.423V by default and system agent cpu is at 1.52V , sorry for the bad quality

[Guest]

Yea the board will ov a lot on Vccio and Vccia around 1.4v on my hero anyways. Crazy high. 

Generally up to 1.2v is enough.

 

You have a pretty average 14nm Intel processor. OC ranges 5.0-5.3ghz since the past few generations. 

[jones177]

I am sorry to hear it.

My i7 8700k was an under performer and it bugged the hell out of me. 

 

In testing my i7 8700k, i7 8086k and a i9 9900k I learned that the big leap in performance was at 5ghz and not much if at all after that. I did not test at 5.3ghz because it is beyond my cooling solution. 

 

What I recommend is to run some game benches at stock. 5ghz and 5.1 to see if there is much of a difference in frames.

It may not be worth overclocking at all if Thermal Velocity Boost is really a thing. 

[xg32]

don't believe the ocs u see online, 5.2 easily doesn't exist, or is some kinda golden bin. 5.1 1.375v is the top bin on SL. The "easy" ocs are usually with an avx offset.

 

https://siliconlottery.com/collections/cometlake/products/10900k51g?variant=32671332728918

 

vccio 1.3v pll 1.15v or 1.2v, not sure about the system agent on z490, 1.5v sounds higher than i remember on other chipsets.

 

I think you have the same ram as i do, cl16 4000 tfaw 280 1.45v works for me (running 3866 1.4v everyday), not gonna get much faster than that and not worth upgrading, unless you are going for 32gb.

 

Also if your gpu pulls 300w with the cpu pulling 300w u might be pushing ur psu hard, so i'd dial the oc back a bit anyway.