Quote: Originally Posted by degu22 You do realize thoes cards will only be running at half their power. Does the mobo have dual 16x pci-e slots or 2 8x pci-e slots in crossfire mode?

All 975X motherboards switch to 8x when using crossfire...It's a limitation of the Northbridge controller...
The speed difference of the 8x to 16x is hardly noticeable...