I recently bought a second XFX 5770 1GB to crossfire with my other card (also a XFX 5770) after plugging everything in and attaching the crossfire bridge, the crossfireX tab in CCC never showed up. I had this happen to me before with two 4670's a year a ago when i upgraded to Windows 7 64 bit. So i did what I did with the 4670's and went back to vista 64 bit. However with the 5770's this didn't work so i have cleaned out all the old drivers and installed the latest ones but nothing. I can't enable crossfire. The second 5770 is showing up in the CCC device manager so the PCI-e slot is working fine.
I have a Dell Xps 630i with a Nvidia 650i SLI motherboard.
I have a Dell Xps 630i with a Nvidia 650i SLI motherboard.