Intel spec for 13900KS is 320W and not 253W.

ilukeberry
Intel spec for 13900KS is 320W and not 253W.

PL2 = 253 
TDP up = 320
 
Again, stop posting. 
 
 

Again, the only proper fix for this mess is new BIOS release from EVGA with official recommended fix from Intel which is 0x129 microcode. Fu** around BIOS CPU power settings and tweaking what works and what doesn’t is NOT proper approach to fix this issue. 

The new micro code only prolongs degradation by forcing longer idle states but when the cpu is pushed hard it does not stop the 2 cores from boosting too high with too much voltage. This is the problem is the 2 cores being pushed to hard with too much voltage. They are shoving 1.4+ volts into the cores which is way too high and killing these chips within a years time; when the the voltage should never go above 1.35v. You have to manully tune the cpu yourself and it will fix the problem. Locking all the cores and lowering the vcore voltage, and lowering the cpu power limit is the only true fix I have seen so far as I posted earlier on how to do it.

Also, I want to make a correction. In my tuning post I said my max "vid" 1.38v with a -95 offset. This was incorrect, my max "vid" is 1.321v with a -110 offset and my temps stay at 90c or below and my score in "Cinebench 2024" actually improved by 20 points just but making these changes and tuning the cpu myself. You might also have to add a higher negative offset than -100 which is ok. Just start at -25 to -100 as a guide first and then if you need more of an offset than -100 to keep the "vid max voltage" below 1.35v then you can do it; by just going with small adjustments like -105, -110 etc...

This is really horror. How could Intel release such pile of sh*t?

Martin V
Also, I want to make a correction. In my tuning post I said my max "vid" 1.38v with a -95 offset. This was incorrect, my max "vid" is 1.321v with a -110 offset and my temps stay at 90c or below and my score in "Cinebench 2024" actually improved by 20 points just but making these changes and tuning the cpu myself. You might also have to add a higher negative offset than -100 which is ok. Just start at -25 to -100 as a guide first and then if you need more of an offset than -100 to keep the "vid max voltage" below 1.35v then you can do it; by just going with small adjustments like -105, -110 etc...

You might want to edit your earlier post accordingly.
 

Thanks, I went back and corrected my original tuning post! 👍😁

 
Uhh... is it just me, or has the post been deleted?
 

Yeah that was weird here is my tuning post again corrected from before.

You do not need the micro code update. Just tune your cpu yourself, unless your cpu has degraded then send it in to Intel and get a new one, and then tune the new one when you get it right away! This is what I did to tune mine.

1. You need to turn off "Core Isolation" if you have Windows 11, not sure about Windows 10 as it will override any voltage settings you set in the bios for the Vcore, and offset. You can do this by typing in "Core Isolation" into the search bar in Windows 11 and it should pull it up.

2. Go into bios and turn XMP on.

3. If you have a 13900KS like I do for example; you need to lock all the cores to 56 (5.6 GHZ). You want to lock the cores to whatever speed that the bios is showing for the cores that do not run the highest, so 2 of the cores for example on a 13900KS are designed to run at 60 (6.0 GHZ), and the all the other cores are made to run at 56 (5.6 GHZ), so 56 is the real speed of the CPU, so you want to lock all the cores to run at 56 (5.6 GHZ) on a 13900KS.

4. Set the Vcore to 'adaptive" setting and set a 1.345v with a -25 to -100 offset below as a guide first. If you have to add more of an offset of -100 then you can do it in small steps of -105, -110, etc... You will have to play around with this as each CPU sweet spot might be different. In my case I set a 1.345v with a -110 offset and the "vid max" only reaches a high of 1.321 which is perfect as you want to keep the voltage below 1.35v.

5. Set the Vcore PWM Frequency from 500 to 400.

6. Set the CPU Power Limit to 253 watts. In EVGA bios setting for their motherboards "pl1=pl2" so it will set 253 for both and 253 is Intel spec. The CPU doesn't need any more wattage than that.

7. Save changes and Reset

8. Run "HardWare Monitor" and keep any eye on the voltage and temps as you run a benchmark program like "Cinebench" at the same time. Then go back into the bios and make adjustments to the Vcore voltage as needed until you find the sweet spot for your CPU.

Hope this helped!