13600KF overclocking/undervolting help.

[Wakers]

Hey everyone.

 

I'm a bit confused at what's going on with my 13600KF. I'm not new to overclocking but I've not kept up to date on everything that's changed in the last few generations of Intel CPUs (previous 2 CPUs were Ryzen).

 

So at stock, the behaviour is awful. Even gaming sends the CPU temperatures to 100 degrees plus, this is despite having an Arctic Liquid II 320 cooler. Obviously, this is shit.

 

So I went into BIOS and set a fixed voltage of 1.2v and left literally everything else alone. Now temperatures in gaming peak at 65-70 degrees depending on room temperature, and even in stress testing it peaks at around 80 on most cores. This is amazing, but obviously there's a lot of headroom there.

 

So I did a mild overclock to 5.2 on all p-cores and 4.3 on all e-cores. Temperatures barely changed so I thought could push further.

 

No dice. The CPU simply is not stable no matter what I do from this point. I can't even get 5.3GHz to successfully complete a cinebench render even if I set the vcore to 1.4v, which I wouldn't want to run it at 24/7 anyway. So I'm thinking vcore must not be the limiting factor here. However, no matter what I change, I do not seem to make any headway.

 

I've followed guides, or tried to, but most of them recommending using offset vcore, which I've tried, but my motherboard only allows me to set an offset of -100mv, which has the temperatures way up past 100 degrees again.

 

Also, at one point I updated my BIOS to achieve a higher RAM overclock (this is still stable, I've tested), and then the tjmax on my CPU went from 100 degrees to 115. I'm assuming that's safe but I don't trust motherboard vendors so much. The other thing is that whenever I change anything related to the vcore, my BIOS automatically changes LLC to level 1, which again I'm not super comfortable with for long term health of the CPU. Is that safe on ASROCK boards?

 

Specs:

13600KF all core 5.2/4.3 at 1.21v

ASROCK Z790PG Lightning

32GB DDR5 @ 6000MHz

Corsair RM850 Gold

RTX 3080 10GB

[TatamiMatt]

42 minutes ago, Wakers said:

Hey everyone.

 

I'm a bit confused at what's going on with my 13600KF. I'm not new to overclocking but I've not kept up to date on everything that's changed in the last few generations of Intel CPUs (previous 2 CPUs were Ryzen).

 

So at stock, the behaviour is awful. Even gaming sends the CPU temperatures to 100 degrees plus, this is despite having an Arctic Liquid II 320 cooler. Obviously, this is shit.

 

So I went into BIOS and set a fixed voltage of 1.2v and left literally everything else alone. Now temperatures in gaming peak at 65-70 degrees depending on room temperature, and even in stress testing it peaks at around 80 on most cores. This is amazing, but obviously there's a lot of headroom there.

 

So I did a mild overclock to 5.2 on all p-cores and 4.3 on all e-cores. Temperatures barely changed so I thought could push further.

 

No dice. The CPU simply is not stable no matter what I do from this point. I can't even get 5.3GHz to successfully complete a cinebench render even if I set the vcore to 1.4v, which I wouldn't want to run it at 24/7 anyway. So I'm thinking vcore must not be the limiting factor here. However, no matter what I change, I do not seem to make any headway.

 

I've followed guides, or tried to, but most of them recommending using offset vcore, which I've tried, but my motherboard only allows me to set an offset of -100mv, which has the temperatures way up past 100 degrees again.

 

Also, at one point I updated my BIOS to achieve a higher RAM overclock (this is still stable, I've tested), and then the tjmax on my CPU went from 100 degrees to 115. I'm assuming that's safe but I don't trust motherboard vendors so much. The other thing is that whenever I change anything related to the vcore, my BIOS automatically changes LLC to level 1, which again I'm not super comfortable with for long term health of the CPU. Is that safe on ASROCK boards?

 

Specs:

13600KF all core 5.2/4.3 at 1.21v

ASROCK Z790PG Lightning

32GB DDR5 @ 6000MHz

Corsair RM850 Gold

RTX 3080 10GB

Honestly, id just undervolt and if youd like a mild overclock, chips nowadays are clocked to near the limit of usable performance, you can push it higher, so long as the temps are good, board is good, cpu voltage is good and most importantly, the silicon is good, the silicon in a lot of cases can be the limiting factor if youve lost the silicon lottery. Pushing the overclock much higher will net a very very minor increase in performance and diminishing returns the higher you go, while the heat will climb exponentially due to electrical resistance and things

[Ebony Falcon]

Have you crancked llc at all ? Might not be that you need 1.4 underload but just a more aversive llc to stop the initial droop 

[unclewebb]

On 2/29/2024 at 2:52 AM, Wakers said:

tjmax on my CPU went from 100 degrees to 115. I'm assuming that's safe

I would not assume that.

 

Intel sets the default thermal throttling temperature to 100C for a reason. Intel has specifically said that they cannot guarantee long term stability if you choose to operate your CPU beyond 100C. Set this back to the default value.