Computer shuts off after a few seconds of booting

deathdasuar

Commendable
Apr 22, 2016
5
0
1,510
I have had my home built PC for just under a year now and one day when I turned it on it got half way through loading the BIOS before it flicked of with no warning. The first time I turned it on it ran for about 20 seconds and if I turn it on again it will run for less and less time. So I took out all the parts except my CPU and the cooler . the BIOS have the expected no memory bleeps but then it shut off the same as before. It's not the power button either because I tried bridging the pins. I have no idea where to go from here so if anyone could tell me what's wrong I would be very great full.

CPU: AMD fx8350
CPU cooler: cooler master seidon 120v v2
Mother board: Asus sabertooth 990fx r2.0
PSU: corsair cs750m
 

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