Currently im running a i5 750, OCZ Reaper ram, Asus P7P55D Mobo with HIS 5770 Cards in Crossfire. Im not satisfied with the perfomance, i've noticed that on some games its got the same performance with 1 card than on CF. My drivers and app profiles are up to date. The motherboard PCI lanes run at 2.0 x single 16 and 2.0 x single 16 @ 4. Are there 2.0 x 16 pci-e mobo's abailable than run @ 16 IN both lanes or do they only come in 2.0 x 16 @ 4 and 2.0 x 16 @ 8. Please give me some advice and some models if u can.