Can you take a picture of this cover? Where are you getting the temps from? The temp you stated is what I would expect for the motherboard area but they are low for an ssd m2 under stress.Thanks so much for the info.
I'm running Windows 10.
The SSD doesn't have a heatsink as such but it has the thermal compound and fits under the cover on the Asus Motherboard. Temps are around 37-41 deg C so that seems OK. Its been in there for a couple of years.