Computer Turning on and off.

loganman888

Distinguished
Nov 22, 2014
47
0
18,530
Just now my PC booted up and launched the windows repair screen, I then selected launch repair mode. Upon clicking that my PC shut off and now the LED that usually shows power blinks once every few seconds and the CPU fan starts spinning and turns off again over and over. Before this I have had random PC shutdowns with no error at all. It shutdown randomly multiple times the past two weeks and I have only gotten one error and it was a black screen that said unstable PSU. All my temps are good on all parts of the PC, everything stays under 70c on full loads.


8700k
gtx 1080
16gb ram
windows 10 pro
MSI z370 Gaming plus motherboard
EVGA 500 W1 100-W1-0500-KR 80+ WHITE 500W Power Supply

Im just worried cause this all started when I purchased the GPU recently. All the other parts have been in the PC for 6 months. I ran multiple stress test and benchmarks and the PC never powered off. I had the RAM and cpu both overclocked so im hoping maybe the PSU just couldnt handle it. Im just worried its one of the more expensive parts instead of the GPU. I also updated the bios.
 
Solution
pull the gpu if the power good led is blinking still..dont power the pc up till you get a new power supply. with that gpu you want a good 600w-650w unit. look at seasonic s620 or focus units.