Heya! Last I checked, the thermals were still great, but I haven’t fully retested to see how it compares to my original post. I swapped in the AMD mainboard (there was a bit of dust on the old mainboard’s heatsink) before leaving for travel and have/will be busy for a bit. I’ll have a chance when I get back in about 2 weeks to swap back, retest, and post here (will tag you). Also will probably experiment with PTM7950 on my AMD board.
@jhoff80 @TheTRUEAsian @a4955 any updates/are y’all still experiencing the weirdness y’all posted about? I’m wondering if the stock BIOS has fan curves that are tuned specifically for the stock paste which don’t jive well with PTM7950/liquid metal? I’m not sure how that would be though…
This might give some clues/insights: what temp/frequency was it throttling at stock vs. aftermarket? Is aftermarket somehow letting the CPU reach higher frequencies because the overall temps are lower, and perhaps it’s programmed to throttle more from a higher frequency?
For example,
- stock paste allows a max of 5.0GHz, which thermal throttles down to 3.3GHz sustained
- aftermarket allows a max of 5.1GHz, which thermal throttles more, down to 3.0GHz sustained
Which could cause the aftermarket paste to perform lower, and explain this:
but I’m totally spitballing here; I’ve never seen that behavior and don’t think it makes much sense, but it’s a possibility?
Aftermarket may also allow the CPU to stay at higher frequencies for longer, resulting in warmer overall thermals (and thus a warmer aluminum chassis). With stock, it may only be able to stay at 5.1GHz shortly and may reach over 100C or whatever the thermal limit is in 1 second. While aftermarket may be able to stay at 5.1GHz for 3 seconds.
Guessing here as well, but I think that may be what’s happening with this:
and higher internal temps may cause other things to underperform? IMO probably wouldn’t, but this could easily be tested by running the mainboard outside of the laptop.