Question My PC keeps instantly shutting down and rebooting

Cglass

Commendable
Jun 18, 2017
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1,530
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Ive recently purchased a pre built pc and in a few games ive played it been randomly shutting down my pc instantly without warning and then rebooting it. I've done benchmarks with this pc before so it has been maxed out a few times without any dramas. But some games still crash my pc making me think its a power issue but how come the benchmarks never caused this issue?
 

Blitz Blitz

Reputable
May 18, 2015
704
11
5,015
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I'll check whole system first, then look for benchmarks and gaming. Check your psu. Check thermals, clean dust, reapply paste and change cooler if necessary. Test ram, hdd. Download some system, cpu, gpu diagnostics utility. Change cmos battery, update bios, reinstall windows. Also what pc you buy? It can be some problems with prebuilt system, if you wanna upgrade, or change something.
 

Cglass

Commendable
Jun 18, 2017
27
0
1,530
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It is very clean as i've only had it for 3 months now and it is water cooled CPU. Plus they used it and demoed games with it at pax.
 

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