HELP.. no display after replace GPU..

frieswithcheese

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Sep 18, 2009
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hi.. i just replaced my spare pc with an older gpu(7600gt) i used. but after i replace it the fan on the gpu works and there is heat too. everything is running normally but the problem is that theres no display. my monitor shows a black screen. there is signal but no display.. why? is there a possibility tat the psu is not powerful enough? my psu is 300w.
 
ok the psu shouldnt be the problem replace the gpu with the better one then change the setup to 800x600 or 600x480 or something small like that then try again with the older one
ps are the two cards from the same company like ati or nvidia?
 
ya they and from the same company. both nvidia.
how do i even change the settings when theres no display? when i change back to the previous card theres display.