I don't even break 40 celsius on this drive.
I can confirm anyone wanting to buy this drive, don't bother with momentum cache, its basically junk. I did a 7-zip unzipping test of same files, momentum cache off and on, and when the cahce was on it was slower by about 7-10 seconds each time.
Leaving it off everything feels a bit snappier too. I already uninstalled the software, best to just use the p5 1tb drive plug n play.
I added a heatsink and some copper to mine, I don't break like 45 celsius now for 90% of things.