Question My PC randomly shuts down ?

[meepy505]

Hello, so ever since i upgraded my pc it randomly shuts off after an hour or two of gaming and it will do it like two times while im playing for the day. it doesnt always do this every single day but sometimes it does. When i first upgraded it was fine for a week or two and randomly started doing it then after a few weeks it randomly stopped and started again.

I really don't know anything about pc and things like that as I've always had help so i dont know what the issue could be. i feel like ive tried everything to fix it. When i originally upgraded it was like two months ago and I upgraded my pc heavily. i upgraded my motherboard, cpu, ram, and power supply. so the parts i upgraded to would be ddr5 ram, cosair RM750x 80 plus gold for power supply , ASUS TUF gaming B650-E WIFI AMD B650 AN5 ATX motherboard, AMD ryzen 7 7800X3D. The rest of the parts i had before the upgrade would be 4070 super, nzxt kraken 120 cooler, and 1TB NVMe M.2 SSD. i have windows 11 as well.

 

[Aeacus]

Random reboots or shutdowns are mostly caused by 2 issues:
1. CPU/GPU overheats and to prevent any damage, system shuts down.
2. PSU fails to deliver enough power to the GPU or fails to keep smooth enough voltage for PC's operation.

First check your CPU/GPU temps, both at idle and under load. If temps are within reason then it's safe to assume that it's the PSU who is acting up.

RMx is good quality PSU. But there can be lemons even among the best. So, if temps are normal, look into RMA of the PSU. RMx has 10 years of warranty.