The PTM supply situation with a lot of fake products around (especially from untrustworthy sources like Amazon) made me stick with Duronaut thermal compound. It got good ratings for direct die usage and durability and is actually still somewhat reasonably priced. I’ll see if that was a mistake but a few months in and everything is still ok. I lost some thermal performance rather early on but I assume that was through settling of my custom cold plate, making the interface with the dies a bit less optimal but I am still quite happy with how it keeps up.
The Grizzly PTM appears to be a bit challenging to apply properly, requiring very even, non-slanted, pressure during set-in.
I am running ComfyUI since a few days and had multiple instabilities, infinite hangs and segfaults - (but it depends on workload). I noticed the sensor “temp4” easily ramps from 40 to >80C in seconds.
While monitoring the situation I reached 98.6°C while the back of the Framework mainboard was at 51C. At the cooler I could not find any spot >40°C with the infrared.
Can you tell if that behavior is identical to your situation?
It seems to ramp up that fast, that the fan is still off - it should range from 45°C @ 25% to 65°C @ 100%. Maybe the default “composite temperature” setting in BIOS is bad?
If it would be an improperly applied (isolated) TIM as above, you would literally almost instantly go to 100*C in any workload, not “in seconds”.
Also going to 100C should not make you segfault or have instability otherwise, the system is supposed to be able to work at 100C for 24/7; it would just thermal throttle voltage and degrade performance. I haven’t used ComfyUI but either it’s a hardware issue beyond cooling or something wrong with your OS/ComfyUI.
It takes about 15s to go to from 28°C to >90°C. I would have assumed, this points towards a bad transfer to the heatsink. Anyhow, if I set the Fan to permanent 100% I get up to max 70°C also running more than 10mins on a job.
