Video card interface is a 2.0 socket able to take a 2.1 plug

[nisselsid]

video card interface is a 2.0 socket able to take a 2.1 plug

 

[alvine]

yes.

 

[willard]

Probably, it will just be limited to PCIe 2.0. There are some compatibility problems that can crop up, so YMMV.

As a side note, you can even plug 2.0 devices into 1.0 boards.

 

[Supernova1138]

PCI-E 2.1 is only a very minor revision to the standard. A 2.1 card will work just fine in any 2.0 slot. Some of the really old 1.0 slots do have compatibility problems with the 2.1 cards, but since you have a 2.0 slot you won't have to worry about that.

 

[refillable]

You mean PCI-E 2.1 card on a PCI-E 2.0 board/slot? No worries, it should be backward compatible. They are just basically almost the same thing and there is no differences on bandwidth. For your Information PCI-E generations are known to be backward compatible, mostly don't require BIOS update, but some does. PCI-E 2.0 cards can be put on 1.0, 3.0 can be put on 2.1 or 2.0, and sometimes when you put 2.1 to 1.0 or 3.0 to 1.0 you need BIOS updates.

 

[jaguarskx]

Well, there are no PCI-e 2.1 slot in any motherboard; it does not exists. So if there were any issues with sticking a PCI-e 2.1 card in a PCI-e 2.0 slot, then a lot of people would be screwed.

As state, PCI-e 2.1 is just a minor revision to the card. In fact, nVidia didn't even bother updating to PCI-e 2.1. All of their current cards are PCI-e 2.0.