HD 7750 fan spinning, but no display

mike2012

Distinguished
Mar 15, 2012
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Hey. Well, about a year ago I bought an HD 7750. I used this up till I got my HD 7850. But now the PSU broke and I'm forced to go back to the OEM Dell PSU. Now, on this same mobo, the HD 7750 used to work. Now, I took it out of a drawer after sixth months and on the same mobo, gets no display.

The integrated graphics will display, but not the HD 7750. The fans are spinning too. I don't think it's dead because before I put it away, it was working great. Could this be a driver issue or something?
 
I had an issue where I was getting no display or display dropping mid use after I installed a second 7850 for crossfire moving my original down a slot and putting the newer one in top slot. What wound up doing the trick for me was doing a cmos reset and a fresh reboot. I just happened to see this recommended elsewhere that anytime you rearrange or change components to do cmos clear and voila it worked. Hope it helps you out...let us know.