8800GT arthifacts

Hi,
I own a leadtek 8800GT . I was surfing the net and on the monitor it started to show horizontal lines all over the screen. I had this problem before but then the card was in warranty and they fixed it ( didn't replace it)
The arthifacts apear since PC boot . In device manager it shows the card with a " ! " sign , and the resolution is 800x600 and can't change it , in Change Resolution menu ( i run win7 ultimate 64 ) it shows that there's no video adapter detected.
Is there a way to fix it on my own?
Thanks for help in advance ! :)
5 answers Last reply
More about 8800gt arthifacts
  1. Did you install the driver for your 8800GT??
    If you didn't then install it first...
    How about your PSU? brand? model?
  2. The driver i use is the latest , and PSU is a 500W no name ( came with the case ).
  3. Did you attached the additional power connector?
  4. test your hardware
  5. I have this video card for 2 years now so yeah , i use the power connector , as for the hardware everything looks fine as it works nicely with another video card...witch shows that the video card is the problem.
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