Asus M3N72-D not recognizing Sapphire 6790 in either slot

[PandaMiner]

Asus M3N72-D Specs

It has 2 pcie(1.0) slots, that when in tandem, run at x8. But that's not the problem.

I have a working XFX 6870 that works in either slot.  The Sapp doesn't work at all, in either slot. It is powered, the fan spins, the PC posts with 1 beep, but I get no output. The card has 2 DVI outputs, and neither one puts out.

When I put the 6870 back in, (in either slot config) it works but the Sapp doesn't. Windows 7x64 doesn't even recognize that there is a second card present.

I don't know what to do next.

Can someone point me in the right direction? I'm losing mining time. 


dave

[1714837990]

1714837990

[1714837990]

1714837990

[1714837990]

1714837990

[1714837990]

1714837990

[crazybernie]

Do you have the latest Mobo BIOS?

Might want to just RMA the card... maybe you can get an advanced ship option that allows you to get the replacement up front.

[PandaMiner]

I put the card in my everyday (msi 870a-g54) pc and it works.  I don't think the asus m/b could handle that much power..  it only had a 4-pin power connection.  I dunno.  But now neither card works on the asus.  Strange. Maybe I fried something.