As I know GV-N650OC-2GI was a PCI-E 3.0 card,so it should be"PCI-e 3.0@PCI-e 2.0".
Motherboard GA-H61M-S2PV have a PCI-E 3.0 slot.
It shows "PCIE 2.0X16@X2.0"means GA-H61M-S2PV have a PCI-E 2.0 slot.
And I know :Sandy Bridge = PCI-E 2.x
GPU-Z(0.6.4) show my Graphics BUS interface "PCIE 2.0X16@X2.0".In fact it should be "PCIE 3.0X16@X2.0".
Devices Information:Motherboard GA-H61M-S2PV,CPU I5-2550K,Graphics GV-N650OC-2GI ,Power ANTEC EA-502.
The strange thing is that Graphics contents becomes correct after replacing Intel...