I reinstalled the OS and re-seated the heatsink for a friend's computer.
the keyboard and mouse input lag they were experiencing is gone after the OS reinstall. (which was probably result of PUPs and malware and what I like to call "data cancer" that windows accumulates over time, and I think this install of windows 7 was 5+ years old)
However, we remotely observed temperature peaks around 72C prior to my receiving the machine (through teamviewer), and after the CPU re-seating with fresh thermal paste (arctic silver), it peaks @ ~80C while running prime95, though it tends to rest on 78 or 79 more. The test conditions are not identical, however I have air conditioning and she does not (thus my room temp is a fair bit lower). I am concerned that on hot days this may become a problem for her. (after closing ARK, a particularly hardware intensive game, i see that core0 was jumping between 81 and 84 according to CPUID HWmonitor)
the CPU in question is: intel Core i5 650
I think to keep temp down she should probably obtain an after-market heatsink ANYWAY, but she isn't suffering from serious performance loss at the moment. Is this an expected stressed temperature range for this cpu?
I'm just curious why its running hotter after I applied the fresh stuff. Maybe it was actually peaking at 80C before but she shut the game off, or alt-tabbing lowered the stress a bit while we watched it.
Or perhaps the intel heatsink clips are looser than I am accustomed to with my AMD cpus and I need to use more paste?
I don't really know. All my heatsinks, even the stock ones, with AMD have always fit very snugly. This intel stock cooler seems to be pretty crappy, but perhaps i'm just doing something wrong.
Maybe it just runs hot?