Possible bad power supply?

[tomkym]

When ever I start any game, from chess to Rome 2 my computer immediately shuts down and restarts. I have swapped out video cards, swapped the cards between the different slots, swapped around power connectors and reinstalled drivers several times. I have verified that my 12V rails are at 12v but it would appear that as soon as a game starts or load on the video cards the computer will power down. It does the same thing when I hit start on FURMARK. Any suggestions?

 

[damric]

What power supply model is it? Can you list the rest of your rig specs?

 

[tomkym]

Power supply: 800W Xion
Motherboard: Asrock Z77 Extreme 4
CPU: i5 3350 with a zalman cnps9500A cooler
Memory: 16GB of Gskill
System: Win 7 64 bit
Case: Rosewill Thor V2
Video Card: GTX 550 but I have put in GTS 250s also and GTX 460 and they all do the same thing

All temperatures are normal prior to starting a game. This morning as soon as I hit the start button on furmark I saw a screen then it shutdown and restarted.

 

[damric]

XIONs are pretty bad, so it's a good guess that it might be dying. The rest of your parts are pretty efficient so you can easily get away with a good quality 500-550W PSU.

 

[tomkym]

Thanks going out for a power supply today. It is the most likely problem.

 

[damric]

Thanks going out for a power supply today. It is the most likely problem.

If you aren't sure what PSU to get, do post here.

 

[tomkym]

I bought a corsair 750 watt. Computer runs normal again. Put 2 gtx 460s back in. Thanks for the help.

 

[damric]

Glad that fixed your problem