PC crashing [FIXED]

hi,

i've built a new PC in the last week or so with the following specs

CPU:AMD X6 1055T
RAM: Transend 4gb single chip
MOBO:ASRock 880G
PSU: corsair CX600
GPU: Powercolour ATI HD6850
HDD: 1x 500GB Seagate SATA
1x 250GB Maxtor IDE ATA

with windows 7 32bit/ubuntu 11 running off the 250gb and the 500GB currently used as storage until i get a 64bit copy of W7.

the problem is when ever i run a demanding game (Arma 2, Portal 1/2, TF2)
after a few minutes/secconds of it displaying actauly gameplay the screen goes black (or grey in TF2) the audio drops after a few seconds and stutters and my PC restarts it self.

i originaly thought it was UDK which i installed a few days ago but its not, im currently in the process of reinstalling steam and checking to see if i can get a replacement GPU.

any suggestions/thoughts would be helpful.

• Reformated to no change.
• ubuntu REMOVED!
• physx drivers make no diffrence.
• latest and older drivers make no diffrence.
• 32 Bit windows 7 replaced with 64 Bit windows 7 pro.

EDIT: Problem was fixed with a replacement video card.

Hi, only install windows 7 on the 250 gig hdd, it's not recommended to install 2 different operating systems on one HDD

Have you tried lowering your in game quality settings like lower resolution, medium details etc.

Install the latest drivers for your graphics card.

Clear your cmos

download gamebooster from iobit and see if makes any difference.

Your PSU should be fine, but test with another PSU, memory, and your onboard video as well.

Make sure the 6-pin power connector is connected to your graphics card, check that everything is properly installed/inserted like memory, graphics card, power cables and the like.

This sounds like a power issue.

no error message apart from the option to boot in safe mode, GPU temp is around 30-35c, drivers are upto date and i can run Call of duty 4 on ultra high with no problems but all my other games seem to do it (gmod, hl2, portal, arma) i've tried reinstalling steam and now it doesn't even open.

Yes, do what we said by installing only windows 7 on the HDD, and then troubleshoot from there, like what i mentioned in my first post.

RAM might bot be the problem here, becase if it was, he'd be experiencing blue screens.
But it's always good to test the RAM using memtest86.
Good sggestion Arc2571.

Does the problem still occur?

Don't forget to get this "DirectX End-User Runtime Web Installer"

http://www.microsoft.com/download/ [...] aspx?id=35

Even if windows 7 have DirectX 11, some apps and games need the extra *.dll files that the DirectX Runtime have.

the drivers are as new as i could find, and if you read the above post i compleatly wiped my HDD's of both OS's and reinstalled W7 by it self.

It look like when damand comes the PSU gives up, Do you have any PSU tester or any other PSU to try?

i still haven't read what ram you have, how much and how you're running it and in what slots......

here's something off the wall........ and i know you're running an ATI/AMD card......... go to nvidias driver page. look for the PHYSX DRIVER ONLY....... download and install.

DOES IT STILL DO IT ?

"i had the physx driver from my old card i forgot to remove" are you saying you didn't yet install new Windows?

So the one you have is probably old Physx driver try a new one and then see if it helps,

http://www.nvidia.com/object/physx [...] river.html

Don't forget to check the RAM for errors using memtest86. You should definitely try it.

Did you find any errors with memtest?

uninstalled nvidia drivers ( graphics and physx ) uninstall ati/amd drivers......... ) graphics and sound only NOT mother board drivers )... ?? reboot, ley windows find card and install it's own drivers. how does it work ?............if not ......THEN ......... pull card. run machine off of on board video... work ?

So, right now, you aren't having any problems?
That's good..
Report back if any problems arises again.

nothing so far and i've been running games on full graphics a fair bit since i got the replacement must have been the card, the guy at the store said there was no pulse, what ever that means.