[SOLVED] pc always shuts down unexpectedly

Sep 24, 2019
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so lately my pc started shutting down for no reason and i can't really seem to figure out why, i've tested my power supply with the pin method, tried clearing my cmos, cleaning my pc, but it still shuts down from time to time and after a couple shut downs it wont even turn on, i've noticed also that when I change motherboards colors it resets everytime the pc shut downs. my drivers and bios are up to date so i dont really see it being a software problem. pc specs are an i7 8700k(@stock for now because of this issue), 16gb tridentz rgb ram,msi pro gaming carbon z370 mobo, kraken x52 cooler, 256gb samsung evo ssd, 2TB Seagate hdd, coolermaster mb500 tuf case, thermaltake toughpower rgb 850w psu, and im running windows 10. what do you guys think my issue is?
 
Solution
Take out one stick of RAM, download Prime95, run a "blend" stress test for 12-15 hours. If it doesn't crash, it's fine. Swap in the other stick of RAM and repeat.