PC crashes when playing high spec games

[roberttune]

my pc keeps crashing when I play high end games only when I play high end games it will crash low spec games is fine and any other time its fine, it gose black screen and then restarts and some times it just gose black screen and I have to press the power button again to turn it off and back on I dont no what the problem is iv got all the drivers up to date checked for viruses checked registry put new paste on the CPU as it was running hotter then it should fort that would of fixed it but nothing tried using another PC tower still nothing I been using speccy to check how hot everything is and its fine just turns off cant find the problem, help would be really appreciated

my PC spec is:
core i7 2.8Ghz
8GB RAM
Nvidia Geforce GTX 480
800W PSU

 

[Rabbit01]

Not a gamer, so I don't know whether the games you're having problem w/ are only GPU intensive or both GPU & CPU. Best thing might be to stress test your CPU & GPU separately.

You can run something like Furmark to stress test your graphics card. For CPU, maybe Prime95.

Hopefully one of these can help you rule out your problem.

 

[roberttune]

Guild wars 2 (beta) and ARMA2 are the ones that keep crashing I ran the Prime95 CPU did fine soon as I use the furmark on the GPU it crashes black screen so could this mean the card is faulty?

 

[Rabbit01]

Does Furmark ran even for a bit? Were you able to monitor the initial temp?

 

[roberttune]

Nope soon as I click go it just crashes

 

[Cobalt006]

I would say update drivers. But they may not help either. Sounds more like the card could be bad. Are you able to switch out another card. If so and everything works fine. I would say the main card is faulty. Check the software for your card, It also maybe just a few setting that need changed. I am sure someone here may be able to assist you . With some other ideals. To help

 

[Rabbit01]

Maybe this can give you some idea: http://forums.guru3d.com/showthread.php?t=326099

Post the make & model of your power supply, this will allow folks more knowledgeable in this sort of thing to help you.

 

[roberttune]

drivers are upto date ye dint do anything to help and I wish I had a another card floating around would of tryed that months ago its frustrating me...

the PSU is a WIN power+plus 850W

had a look at that thread as well sounds like mine could be a faulty card by sounds then witch I will be very angry about if it is

 

[Rabbit01]

Did a quick search on Winpower, unfortunately I didn't find many positive comments. Might be GPU issue, but looks like it could also be a PSU issue where it's not supply enough to the graphics card. Is there another PSU you can borrow?

 

[roberttune]

no I dont have another PSU but its looking like I mite have to take a trip down to the computer shop to get another one looking on the side of my PSU from 1 +12V its giving out 34A and my gfx card minimum is 42amps but iv got a 6 pin PCI connector and 2 Molexes (I think thats what there called) plugged into the 8pin PCI adapter so surely them 2 together are giving out enough amps RIGHT????

 

[Darth Shiv]

Do you get any entries in event viewer?

 

[Rabbit01]

Found this article regarding PSU & graphics card:

http://www.playtool.com/pages/troubleshooting/intro.html#powersupply

 

[roberttune]

Ye defo looking like it could be the PSU I use a program called precisionX and under clocked the gfx card and set all the games to low spec and it don't crash ardly, just saving for a better power supply I was looking at a...

XfX 850w black edition

that then should be more then enuff

 

[Rabbit01]

Good to hear you've narrow down the problem.