Hi everyone,
Im a guy with not much knowledge about hardware and stuff. Recently I have decided to upgrade my video card. So I bought an Gigabyte HD4870 1gb yesterday to replace my 9600GT.
It runs well for a while until I do the Vista Performance Rating Test in the Games sections to update my Rating, the PC suddenly turns off. Monitor goes off, power light on the PC goes off but light on keyboard still on. I try to turn the PC on but it wont turn on. I have to unplug the power cable or turn off/on the power supply and wait for a while, then turn on the PC again, now it is on.
When I play Crysis Warhead and put it to higher resolution than usual, the PC turns off again.
Thought the card was faulty, I exchanged the card for a Gigabyte GTX260 today and it still has the same problem.
My system:
AMD 9950Quad 2.6ghz
4gb ram
PSU680w
Please help!!
Im a guy with not much knowledge about hardware and stuff. Recently I have decided to upgrade my video card. So I bought an Gigabyte HD4870 1gb yesterday to replace my 9600GT.
It runs well for a while until I do the Vista Performance Rating Test in the Games sections to update my Rating, the PC suddenly turns off. Monitor goes off, power light on the PC goes off but light on keyboard still on. I try to turn the PC on but it wont turn on. I have to unplug the power cable or turn off/on the power supply and wait for a while, then turn on the PC again, now it is on.
When I play Crysis Warhead and put it to higher resolution than usual, the PC turns off again.
Thought the card was faulty, I exchanged the card for a Gigabyte GTX260 today and it still has the same problem.
My system:
AMD 9950Quad 2.6ghz
4gb ram
PSU680w
Please help!!