Random power offs.

[For Which It Stands]

Specs: http://i.imgur.com/5ZqfxMQ.png

 

So this has been a recent problem. I play quite a bit of League of Legends, and recently my computer has gone through random losses of power (power supply shuts off) while in a game. Because of this, I am placed under a leaverbuster 10 minute low priority queue, which means that I have to wait 10 minutes of nothing before looking for a match. This happens because my computer takes a long time to start up and connect back to the game (average of 8 minutes). So in reality, the system marks me as someone who AFK's from games.

 

I did a stress test on my CPU using Prime95, and that did not cause the computer to shut off. I did, however, do a GPU stress test using Furmark, and my computer did shut off in about 30-45 seconds of it testing. So I am wondering if the problem is caused by the power supply (which is really old, has a label that says it outputs 450W but that probably isn't true anymore) not outputting enough power to the GPU and ultimately shutting off because of its inability to do the job correctly.

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What PSU do you have...? Check temps. EDIT: 450W Unknown.

[Goodman2265]

I would play it safe and just buy a new PSU

[Goose Legs]

I'm going to echo what the others have said. No name brand power supplies can be sketchy when new, and deteriorate quite rapidly as they age.

[0x1e]

Replace the power supply before you have to replace the rest of your system with it.

[evilarceus]

Check in Event Viewer to see if it's actually the PSU.

[BUREIDEN]

replace the gpu man, if the gpu goes it usually takes a bunch of S*** with it. better to be safe than sorry.

[Rusty.]

Go into event viewer and check for kernel Power event 41.  If you see it do this... 

 

The video is crap but It fixed my issue I've had since i built my PC.  I don't know if you have the same issue but it's worth a message.