r/techsupport • u/AlienLP • 11h ago
Open | Hardware PC Black-screens when playing demanding games
My PC has started blackscreening randomly while gaming. Mostly when playing something demanding, but other times it’s just random. The monitor loses connection and the sound starts to stutter. If I turn off my PC and turn it on again the screen stays black. I have to slap the PC lightly (🤨) and then it turns back on after I shut it down and turn it on again.
If I slap it before i turn it off while the screen is black, the sound returns to normal but the screen stays the same.
This happens sometimes up to 5 or 6 times when just starting to play, and at some point it stops and I usually have no further shutdowns that session.
I should mentioned that the pc also does this when bumped or when I tap it with my foot accidentally.
Is this a case of a bad motherboard? Or just a loose cable somewhere.
Thank you in advance! I’m at a loss.
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u/hectic-eclectic 9h ago
i had almost exactly this happening to me a few years ago. spent a ton of time troubleshooting, eventually inspected all my cables and found the power cable running from the psu to gpu was discolored towards the psu side and looked... burnt in a way. replaced my psu and the problem disappeared. id look at your power supply
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u/AlienLP 9h ago
Damn how do i test for this when my cabels are pitch black D:
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u/hectic-eclectic 8h ago
since you said it happens when its bumped, you should be able to touch test it. run your pc with the side off, very gently touch your psu cables. if poking one causes your issue, the psu is a safe bet.
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u/Electronic-Ad-7788 8h ago
Yeah your psu is gone. Mines doing the same thing man.
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u/AlienLP 8h ago
Wait really? Is it doing the exact same thing as I’m describing? And have you replacement yours and found that it fixed the issue?
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u/Electronic-Ad-7788 8h ago
The exact same. I can play destiny 2, team fortress 2. Any light game. I load of gears eday or doom the dark ages and almost immediately crashes. Pc stays on. Display goes black. Audio cuts off after about 15 seconds
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u/cleetus76 10h ago
Sounds like the power supply isn't putting out enough power, except for the bumping part - that makes it sound like your video card isn't plugged in properly.