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Is my MotherBoard compatible with PCI-E 2.0 / 2.1?

Last response: in Graphics & Displays
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February 28, 2011 12:45:12 PM

I have an old MSI K8N Platinum SLI. I have a nVidia GF 6800 GT in there now.

I've been looking at NewEgg and there are some pretty modest cards for < $75. But the best ones are all 2.0 or 2.1 PCI-E. Will they work on an older PCI-Ex16 MB, and will I be sacrificing performance by putting a 2.0 card in my MB?

Would I be better off trying to find a used nVidia GF 8800 GTX? I've found some on eBay but I can't tell if the 8800 was PCI-E 1.0 or 2.0. It seems say both on nVidia's site. Does that mean it was compatible with the (then) newer 2.0 PCI-E but would still work on the older 1.0?
a c 169 U Graphics card
a b Î Nvidia
February 28, 2011 1:16:14 PM

PCI-E 2.0 is backward compatible with PCI-E 1.0,so you can use a PCI-E 2.0 card on your board.
And 8800GTX is a PCI-E 1.0 card.
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February 28, 2011 1:22:12 PM

http://en.wikipedia.org/wiki/PCI_Express

"PCIe 2.0 cards are also generally backward compatible with PCIe 1.x motherboards, using the available bandwidth of PCI Express 1.1."

So you should be fine, but could end up with a bottleneck in performance if it saturates your pci slot's bandwidth. Cheers!

Edit: sorry, for the double response. By time I had gone through wiki Maziar had already posted!
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February 28, 2011 2:07:09 PM

Thanks for the responses, I know I'll have bottlenecks, I'm just trying to breathe a little life into my 6 yr old system one last time!
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a c 189 U Graphics card
a b Î Nvidia
February 28, 2011 2:39:06 PM

Some recent games are still good with an old computer, just bump the CPU's speed (freq) a little bit or get more RAM's and happy gaming... :) 
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