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PCI-E Question

Last response: in Graphics & Displays
July 31, 2008 12:13:57 AM

Just a quick question. I have a motherboard that has a PCI-E x16 slot and I want to run a videocard that has a PCI-E 2.0 x16 slot. My question is can I run that videocard on my motherboard, and if so, are there any noticable problems or drawbacks?

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July 31, 2008 12:24:58 AM

I think the only time you might run into an issue is with a dual gpu card, but even then its highly doubtful

If you're only running 1 card at x16 pci-e 1.0(1.1) speed (which is around x8 2.0 bandwidth), you'll be fine. THG did some testing on this and there isn't a great deal of difference over x8 except in Microsoft Flight Simulator IIRC.
July 31, 2008 12:46:52 AM

Alright, thanks.
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July 31, 2008 2:37:28 AM

FYI, PCIe2.0 also provides twice the power to the card from the mobo (75W on a PCIe 1.x to 150W on the PCIe 2.0) but there should be no reason for a 2.0 card not to work on your system... unless you don't have a good enough PSU.

What card are you looking at and do you have the correct PSU to run it?
July 31, 2008 3:09:14 AM

Its like Dual channel RAM and Single channeled RAM comparison in which the dual channel has more bandwidth compared to single one but the total impact is minimal in most cases. So PCI-E 1.0/1.1 over PCI-E 2.0 is minimal