PCI Express x16 Compatibility

[joerock4]

Hello,
I was wandering if the recent PCI express 2.1 and 2.0 video cards are compatible with the old PCI Express x16 motherboards.

 

[Maziar]

Hello and welcome to the forums
Most of PCI-E 2.0/2.1 cards are compatible with PCI-E slots, what's your motherboard ?