I have two identical computers, one is used by me and one is used by my brother. they're in the exact same condition and everything works identically except from the gpu. my gpu runs at ~20 degrees higher than my brothers when under load, why is this? they're don't have dust on them and i even recently put new thermal paste on mine to see if that would reduce the temps, but it hasn't. i've monitored the fans too and they seem to be working fine. what could be the problem?