Windows 7 (RTM) Dual Video Cards (ATI) Windows Only seeing 1

[egandt]

I have an ASUS P5Q with 2 ATI cards present in Windows 7 a 2900XT (slow, but great for 2D at 1280x104) and a 4650 (great for HDMI Audio and VGA out and great for use with MadVR render). The problem is that either one works as the primary card, but Windows will not detect the secondary card as present. It did at one point, but since then I've had to install Hydrovison and new Drivers now I only get 1 card. If I must I can install an Nvidia 9600XT (which I have laying around) as Windows 7 will allow both device drivers to be loaded, but that seems like asking for trouble. So any ideas, how to get Windows to detect the second card, with spending 12 hours reinstalling and configuring the system?

Thanks,
ERIC

 

[WildHawg]

I am having a similiar problem but I have 3 9800GTXOC BFG video cards and now the sli function will not enable. I am running Win Vista 64 bit as primary.