Computer restarts when playing Grand Theft Auto IV

[laserforce]

I think it's my power supply but what else could cause my computer to restart while I am gaing.


Not Overclocked
CPU
Core i5 2500k 3.3 ghz Motherboard
Asrock P67 Extreme 4 Memory
CORSAIR XMS3 4x2gb DDR3 1600 Ram Graphics Card
Zotac Nvidia GeForce GTX 460 768mb
Hard Drive
500 Gb segate ST350041 SATA drive Sound Card
PCI Express X-Fi Titanium Fatal1ty ... Power Supply
Rocket Fish 700 watt power supply Case
Antec 600 Case
CPU cooling
Cooler Master Hyper 212 Plus OS
Windows 7 ultimate 64 bit Monitor
AL1916W 19 " Monitor 1280X1024


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[mortonww]

Have you been monitoring temperatures at all? I would also guess that it's your PSU, though. Simply because Rocket Fish is not a good brand.

In fact, the PSU is manufactured by Huntkey, which doesn't make a 700 Watt unit but Rocketfish has re-labeled the original unit as such.

http://hardforum.com/showthread.php?t=123677

Seems like even being a 500 Watt unit, it would still be able to power your setup, though.

 

[skurvy5]

I would download a program like Coretemp, Speedfan, CPUID HWMonitor, etc. and see what your temps are at idle and while gaming. If they got very high, then you might be overheating your computer.

You could also run a program like Prime 95 while your temperature monitor is running and see what your load temps are like.

To check for PSU issues, download Everest and run its stability test program and watch the voltages during the test.

 

[laserforce]

I stopped using a 12v molex to 8 pin conversion cable, and started using the 8 pin cable my power supply came with. I noticed the voltages decrease but my 12v 8pin cpu cable is just barely long enough for my computer it's too close the my Hyper 212 cooler.

So far no crashes and I did a fresh Windows 7 install on my OCZ Solid 2 State series 60gb hard drive.

I got AIDA 64 Extreme Edition

 

[skurvy5]

Have you tried playing a game yet to see if it still crashes?

 

[laserforce]

It still crashes, Fallout 3 and office run fine without crashes. AIDA 64 says Zotac Nvidia GeForce GTX 460 768mb running at 40% speed how do I fix that?

 

[laserforce]

I had my back fan facing the wrong way but I still thing it's my chipset

 

[laserforce]

I fixed it by unlugging the SLI molex port. Quite dumb

 

[laserforce]

Best answer selected by laserforce.