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12900K safe voltages?

techanalyst
Level 7
What are the safe voltage for the 12900k? Bios I set max 1.375 ok or is that going to kill the CPU in 3 months
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34 REPLIES 34

Silent_Scone
Super Moderator
Thanks to the method of die sense, software reading are wholly more accurate compared to some older platforms using socket sense.

Here is the CPU voltage reading from ROG Voltician when running CR20 with LLC4. As seen in the USB Osc overlay, we can see the maximum reported voltage is 1.34v. This matches our peak value during the same run of 1.341v in Hwinfo as reported by the onboard sensor array. However, the Voltician may pick up fast transient spikes that the sensor array cannot read.


91054


During this same period, the peak requested VID was 1.479v.


91055
13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090

techanalyst
Level 7
Odd, using adaptive and my benchmarking scores seem to decrease a lot and temps didn’t really change

A 1.375 manual, XTU - 9800 or so, Cinbench 28kish, 21k 3dmark etc

Adaptive, 9100 xtu, cinebench 27k and 18k 3dmark *

techanalyst wrote:
Odd, using adaptive and my benchmarking scores seem to decrease a lot and temps didn’t really change

A 1.375 manual, XTU - 9800 or so, Cinbench 28kish, 21k 3dmark etc

Adaptive, 9100 xtu, cinebench 27k and 18k 3dmark *


Maybe due to thermal throttling kicking in?

Chainbold wrote:
Maybe due to thermal throttling kicking in?


Thats the oddity though isn't it, manual 1.375, monitoring Intel XTU, no thermal throttling and no other limits applied

Adaptative, Thermal kicks in within 1/2 seconds

Manual 1.4, I hit 80-84 in cine and XTU the same with the 5.5GHz OC and a 1.375 limit (5.2 on all cores when all cores active)

3Dmark doesnt even make it passed 50

Silent_Scone
Super Moderator
Hello,

The reported VID has been fixed (among a few other changes) in the latest batch of BIOS released publically by Shamino.


(APEX 0811)

91068
13900KS / 8000 CAS36 / ROG APEX Z790 / ROG TUF RTX 4090