Computer shutting down, power light blinking

tobyrhodges

Distinguished
May 17, 2011
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18,520
Hello all,

Looking for some advice on a new build. Its been up for about a month with no issues. Last night I was streaming a video and the system shut down and the power light started blinking. I reseated the power cable and started it up again. Lasted about 20 minutes before it shut down again. At the time I thought it overheated so I added a 140mm intake fan to the front of the case and removed one exhaust fan from the top of the case. I also put the stock AMD cpu cooler on. (I bought a cheap aftermarker cooler that I removed). Since doing this its been stable. I should also mention I live in the south and had my AC at 77 (it was 85 outside). I moved it down to 75 to see if that helped.

I believe its either the PSU or the temp in the case. I checked my temps and they seemed ok. The GPU was maxing at 65c and the CPU at 35-40c while playing Far Cry 3 at ultra. Im not over clocking either.

Im going to replace the exhaust fan i moved to the front of the case but now I wonder if its the PSU.

Any thoughts?

Specs:

FX-8320 stock
R9-270
LEPA N Series 500W PSU
Antech p-100 case

Intake: 1 120mm and 1 140 mm Front fan
Exhaust: 1 120mm back