Monitor Goes Black after a while, computer still running

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Hello,
So a few days ago my psu fan starting making a loud and annoying noise but I thought i'd change it later since the rest of the psu works fine. I searched it a bit and I changed my power plan so it wont make that noise and it really helped. But for 3-4 days now my computer either restarts on its own or go black after a while while computer is still on, all randomly no matter what i'm doing. I was thinking of changing my psu but could the problem be caused by something else? I don't want to spend money on it and not having fixed the problem.

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Posts
19532
Registration date
Wednesday October 8, 2008
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Contributor
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June 15, 2019
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Sorry, It's impossible to diagnose your problem via the Internet.

While it's possible that the PSU is failing it's also possible that the motherboard is the real problem.

Good luck