When stress testing with mprime small FFTs the CPU temperatures should reach at least 95°C, but they appear to get throttled at approx 89°C even though sensors correctly report that the "crit" value is 98°C which is equal to my BIOS throttling threshold temperature setting.
It works fine in windows 11 with prime95: the cpu is only throttled when it reaches 98°C and the fans ramp up audibly more in windows because of the higher temperature. I don't think it's the power limit or the current limit as the power draw is way below the limit (and again it works fine in windows).
I checked the many other questions related to thermal throttling, but didn't find an answer.
- Ubuntu desktop 22.04.3 fresh install
- CPU: Intel i7-14700K (only 4 P-cores enabled) I think this was also happening with a i7-13700K
- MB: PRO Z790-P WIFI DDR4 (bios 7E06v18)
- power limit PL1 = PL2: 300W
- power draw on EPS cable: 180W
- reported power draw in software: 140W
