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  #1  
Old 01-30-2013, 7:37 PM
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Falstaff Falstaff is offline
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Default PCI 3.0 compatibility

Are PCI Express 3.0 cards backwards compatible with PCI 2.0 motherboards? I read a few reviews that say they are but some say they have trouble.
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Old 01-30-2013, 8:19 PM
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A quality card "should" be because the spec says they should.

However, for this to work, both the board and the card need to be in-spec.

There is more out-of-spec hardware then in-spec hardware.

Make of this what you will.
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Old 01-30-2013, 8:57 PM
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Default

Quote:
Originally Posted by unusedusername View Post
A quality card "should" be because the spec says they should.

However, for this to work, both the board and the card need to be in-spec.

There is more out-of-spec hardware then in-spec hardware.

Make of this what you will.
+1

Yeah, have you seen the SPEEDS of oh damn. We aint talking about usb 3.0, we are talking about PCI... LMAO!

Still true! best for BOTH to be the same.
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  #4  
Old 01-30-2013, 11:27 PM
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I have a PCI-E 3.0 GTX 660 card in a 2.0 motherboard if that means anything. The data bandwidth is practically the same, even under heavy loads of gaming. You will not see a difference.
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Old 02-01-2013, 11:13 AM
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It'll work. I have a PCI express 3.0 GTX670 graphics card and my motherboard is only PCI express 2.0. No issues.
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Old 02-11-2013, 1:51 PM
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New standards are "almost" always backwards compatible with their older ones. USB 3.0 will work with USB 2.0 and so will PCI-e 3.0 with 2.0!
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