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The original was posted on /r/techsupport by /u/whybanme12345 on 2023-08-07 18:02:05+00:00.

So I’m not entirely sure what’s causing my issue - hoping someone can help me narrow down to a specific hardware or software issue.

My PC will periodically become unresponsive and the monitor input stops working. The PC appears to be on as all the lights are still on in my case, and the fan is blowing at max speed. I have to manually reset it by holding the power button or unplugging. It boots just fine and I am currently using it with no issues.

Are there any tests I can run to determine if the PC or graphics card is overheating? Or can I look up diagnostics on these parts anywhere on my computer to help me figure out if that is the issue?