Hey guys, Quick question...I have crossfired HD3870 video cards. Upon using GPU-Z, it shows that no crossfire is detected (while CCC shows that it is). Another question I have...when using GPU-Z, the first video card shows a bus interface of "PCI-E x16@x16" while the second card shows a bus interface of "PCI-E x16@x4". Why the discrepancy? Is this normal? Card 1 is on the left, card 2 on the right. Thanks in advance for any knowledge put forth.