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Will A PCI Express v2.0 Video Card Work On v1.0

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#1
I have A ASUS A8N-SLI Deluxe motherboard socket 939 which is a PCI Express v1.0. Will A PCI Express v2.0 Video Card (HD4870, HD4850 is what I want to buy) work on v1.0?
 

erocker

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#2
Yes it will and with minimal (probablly not noticable) performance loss.:)
 

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#3
At X16 lanes, no, there won't be any impact on the performance. However, make sure you have a good power-supply for the card as PCI-E 1.1 doesn't supply power on-par with PCI-E 2.0.
 

newtekie1

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#4
At X16 lanes, no, there won't be any impact on the performance. However, make sure you have a good power-supply for the card as PCI-E 1.1 doesn't supply power on-par with PCI-E 2.0.
It won't matter, either way the card is sucking up the same amount of power from the PSU. You don't need a better one just because you are using PCI-E 1.1.
 
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#6
I have an ASUS M2NPV-VM, socket AM2 that supports PCI-E 1.0, and my PCI-E 2.0 HD3850 works fine on it.
 
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#7
The HD4850 seems to draw about 33W from the PCIe slot and the rest off the PCIe connector. (Rightmost diagram). So powerwise it's just fine.