Hi everybody, my brother has some problems with his PC and I couldn't find a solution for it on the internet.
What happens is, whenever he starts a game, the monitor goes into sleeping mode, the computer freezes and the sounds start to repeat itself and then stop. Sometimes the monitor doesn't go to sleeping mode, just the computer freezes. When the freeze happens, ctrl alt delete doesn't work, I have to turn it of by the power switch. One time it froze even without starting a game, just browsing the internet or watching a youtube video, I don't remember.
First I thought there is an overheating issue, but it's probably isn't the case, because it happens even with the sidepanel off. If it doesn't freeze, the GPU temps are around 60-70 C while gaming. The GPU drivers are the latest, maybe another driver I forgot about creates this problem?

Also the motherboard, the case and the RAM are bought used, the HDDs are from older systems, everything else was bought new a year ago.

PC specs:
Ryzen 5 2600 (stock cooler, no overclock)
XFX Radeon RX 580 8 GB
Asus Prime Pro X370
2x 8 GB HyperX Fury
be quiet! System Power 9 80+ Bronze 600W
Cooler Master Silencio 550
2x 500 GB Toshiba HDDs and a 120 GB SSD

UPDATE1: The memory frequency was increased a little bit, so I decreased it back to default, but now a new thing happens. It still freezes, but now the computer automatically restarts.

UPDATE2: The problem is solved!

I reinstalled the drivers, rotated the PSU, reconnected everything, and now it's not crashing. It's been a few days and it still has no problems, so I think it's finally fixed.

Thank you to everybody who helped. This thread received a lot of comments, way more than I expected, without those comments, I would still be looking for answers on the internet probably.

3 years ago*

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For me it sounds as GPU problems. I would check either the GPU or another one in the PC. Then i would go to check maybe RAM or HDD.
If two Antivirus finds everything ok (yes, in this situations always run two), and two malware scaners as well nothing left but clean install of win and see what happens.

3 years ago
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Check your event viewer!

3 years ago
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These are the last 1 hour:
event log 6008
security spp 8198
bugcheck 1001

3 years ago
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No this, check if there are crosses, or red marks, check if it mentions something about gpu, sound etc.
In my case the Esent thing is an useless error.

View attached image.
3 years ago*
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That PSU has cheaped out on some parts and it essentially shuts down or loses most of its efficiency at 80°C-ish. Considering that PC case also has next to zero ventilation and that Polaris GPUs are almost as big fireplaces as the current Intel CPUs, I'd wager that the heat is causing power issues. If that is correct, then simply remove the side or the front panel of the case and try again. Also, if it is right, then pray to your favoured deity that your components were not shorted out by the power cycling yet.
Oh, and re-attach the GPU power cable to make sure.

3 years ago
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Great to hear, looks like I might hit it right with my suggestion or just driver reinstall helped, hope is it really will continue to be working fine.
Btw good psu is always crucial, probably most important for longevity of parts.

3 years ago
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