Why doesn't the HD 6750 work on my supermicro board?

[dannieboiz]

The system doesn't even see the card at all, device manager doesn't find anything but when I replace it with an HD 5450 everything works fine. The card is not dead cause I tested it on other system and it works fine. I'm really curious on what could be the problem.

 

[rgd1101]

plug in the pcie power cable? psu make and model?

 

[dannieboiz]

the hd 6750 doesn't have a pcie power port FWIW the board is an X8SIE-F

the PS is the stock 450w PS from the case manufacture RayGo S2 tower I'm not at home at the moment to get the exact model

 

[Nodyjoe]

Did you try uninstalling all drivers for the video card then re-installing?? driver compatibility could be the issue.

 

[dannieboiz]

got it figured out. The card was bad.