My motherboard and graphics card died recently and I was thinking of buying the ASRock Z75 Pro3 and R9 280X. I think that my i7-2600 (because it is Sandy Bridge)is not compatible with PCIe-3 which the motherboard has the R9 280x have.
I know that the R9 280x works in PCIe-2 ports (which the motherboard has) but I don't know if it will work if I plug it into the PCIe-3 port on the motherboard.
Hope you understand what I am asking?
Will a PCIe-3 GPU (R9 280X) work in a PCIe-3 port with a CPU (i7-2600) that does not support PCIe-3.