it's being a while since some part of the case, most likely GPU, started making a sort of cracking noise. it happens when GPU's temperature changes between 50 to 70 and when pc is shut off. what could be wrong with it?
1080 gtx oc
i5 8400
635 raidmax psu
8g ram
ssd 120g hdd 1t
1080 gtx oc
i5 8400
635 raidmax psu
8g ram
ssd 120g hdd 1t