[SOLVED] My PC completely turns off when CPU stress testing.

Solution
Yeah, either PSU or thermal problems. If thermal, your motherboard is probably at fault as the CPU should simply throttle and not hang.
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Deleted member 14196

Guest
Well use HW info to find out what your temperatures are and monitor them and if they are problematic you will probably have to change the thermal paste maybe look for a better cooling solution maybe more case fans etc.