Originally Posted by Momonator
your fan speed isnt even set to rise from 40% till your card reaches over 80 degrees on the NVidia default fan profile , those temps are hot but nowhere near the maximum , the core wont even throttle back till it reaches 120 degrees C.
In short your core temps are perfectly fine and not the cause of your issue , your onboard memory however could be overheating but i doubt it , have you tried a clean driver install or differant drivers?
try the software route before you start with hardware
and b clean driver innstall i mean uninstall drivers then use an app like driver sweeper in safe mode before rebooting and installing new drivers