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Help: 2 x16 PCIe at x8?

Forum Graphic & Displays : Graphics Cards - Help: 2 x16 PCIe at x8?

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trisro   08-01-2009 at 08:12:31 PM

My motherboard specs state " PCI Express x16 Slot (compatible with PCI Express x8 speed only" ) Does that mean whether I have one or two graphics cards in, the speed will always be x8? I also wanted to get a gts 250 and was wondering how much an affect x8 speed will have on it.

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Message edited by trisro on 08-01-2009 at 08:35:10 PM
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g3force   08-01-2009 at 08:29:34 PM

trisro wrote :

My motherboard specs state " PCI Express x16 Slot (compatible with PCI Express x8 speed only" ) Does that mean whether I have one or two graphics cards in, the speed will always be x8? I also wanted to get a gts 250 and was wondering how much an affect x8 speed will have on it.


Unless you have the older PCI-E 1.0/1.1 you wont see any loss in performance when running two cards in x8 mode.
If your using a single card, the slot will run at the full x16 link.

P.S. Could you please link the motherboard in question?

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Bronze Graphics badge coozie7   08-01-2009 at 08:29:56 PM

^HMMMM, Time to upgrade to a Mark XXI Spitfire;)

Quite a few older SLI 'boards ran 1 card at X16 but dropped to X8 for two, but the point is moot; The GTS250 is not fast enough to suffer even a tiny loss of performance at X8 speed.
So buy it and enjoy, mate.


Message edited by coozie7 on 08-01-2009 at 08:31:20 PM
------------------------------ Peace cannot be kept by force, it can only be achieved by understanding: Eienstien
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trisro   08-01-2009 at 08:38:43 PM

g3force wrote :

Unless you have the older PCI-E 1.0/1.1 you wont see any loss in performance when running two cards in x8 mode.
If your using a single card, the slot will run at the full x16 link.

P.S. Could you please link the motherboard in question?




Added link in question*

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