PSU or motherboard dead?

Ollie147

Honorable
May 2, 2013
86
0
10,640
Hi everyone,

Well tonight I was testing my new 4.2oc on my i5 760 using prime95 and while testing my rig just died. When trying to power it back up all I get is a red light flash on my mb then nothing (Gigabyte P55A-US3). I was watching at the time and my temps were only 75 degrees, my vcore at 1.376 and prime had been running for about 2hrs fine. I tried disconnecting non essentials and still nothing. Tried removing the CMOS battery and that didn't work. I had just reseated and repasted my cooler but that was a good few hrs before it died. Like I said, my temps never exceeded 75 on coretemp. I have just tried the paperclip test and I get a flash of lights from my led fans I left connected via molex then they stop. Sound like the PSU? I did get it off a mate, used. I will be having to dig deep and hunt for a used PSU as money is tight but if its the mb I'll have to sell it all as reasonable 1156 boards at good prices seem rare. I only bought this one about 6 weeks ago as a clearance bargain from a well known online retailer! My only worry is that my keyboard has a led logo on it and that still lights when connected.

Any input will be greatly received
 
Solution


Clearly something died, unfortunately a bios reset won't solve anything. Post make and model of the PSU, if its a reputable one then most likely motherboard died. Hopefully it didn't take the cpu or other components with it.

emdea22

Distinguished


Clearly something died, unfortunately a bios reset won't solve anything. Post make and model of the PSU, if its a reputable one then most likely motherboard died. Hopefully it didn't take the cpu or other components with it.

 
Solution

Ollie147

Honorable
May 2, 2013
86
0
10,640
OK tried the paperclip test properly tonight and seems the PSU is working. Removed the PSU to eliminate the possibility of a short, disconnected everything else, still nothing. Did at one point get it to stay on with the fans running for 30secs then it switched off again. Didn't have the GPU plugged in though. Tried another lower spec PSU just on the motherboard but that didn't work either. So it seems the motherboard has had it. Its still under its 90 day warranty so I'll try my luck there but if not, good excuse to get a Haswell with the G3258 so cheap. Will last 9 months till after my wedding when I can build a proper rig again.