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Problems with nvidia 460s going into SLI

Last response: in Graphics & Displays
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November 28, 2012 9:28:11 AM

Okay so I've seen a lot of people posting this problem but most of them was due to the fact the memory was off. well this time i have to nvidia 460 1GB each, they are the same card, bought at the same time, on GPU-Z everything is the same but the slots they are in.
one being in PCI-E x16 @16 and the other PCI-E x16 @4, would that cause me to not enable SLI?
November 28, 2012 10:02:42 AM

That shouldn't matter. You might need to enable it in the control panel if you haven't done so already.
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November 28, 2012 10:03:39 AM

thats the issue im running into, the first time you set up SLI hardware, windows should either pop up a message with the nvidia control panel, but im not getting anything at all, is there a way to test the bridge?
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November 28, 2012 10:05:43 AM

Have you checked in the Nvidia control panel whether it show the 2 cards?
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November 28, 2012 10:07:35 AM

Nvidia is showing both nvidia 460s under the physX config tab, and I know when nvidia detects SLI that same tab is suppose to change names.
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November 28, 2012 10:16:17 AM

If you are not given that SLI option in the driver then it could mean that Nvidia SLI is simply not supported by your motherboard. Can you verify that your motherboard actually supports Nvidia SLI (not just AMD Crossfire)?
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November 28, 2012 10:19:31 AM

no i cant verify my motherboard supporting SLI, I thought that if it supported Crossfire it should also be able to support Crossfire.
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a b Î Nvidia
November 28, 2012 10:20:56 AM

Is the SLI bridge fitted? Try flipping it upside down.
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November 28, 2012 10:21:09 AM

That usually means that SLI is not supported by your system (i.e. motherboard). Verify that the motherboard you're using supports Nvidia SLI.
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November 28, 2012 10:23:28 AM

So even though a motherboard says it supports Crossfire it doesnt also support SLI?
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November 28, 2012 10:24:12 AM

Sounoriginal said:
no i cant verify my motherboard supporting SLI, I thought that if it supported Crossfire it should also be able to support Crossfire.

No, unfortunately that's an incorrect assumption. They are 2 completely separate technologies. What model is your motherboard?
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November 28, 2012 10:31:00 AM

thanks Rene for the help.
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a c 171 Î Nvidia
November 28, 2012 4:11:31 PM

Sounoriginal said:
Okay so I've seen a lot of people posting this problem but most of them was due to the fact the memory was off. well this time i have to nvidia 460 1GB each, they are the same card, bought at the same time, on GPU-Z everything is the same but the slots they are in.
one being in PCI-E x16 @16 and the other PCI-E x16 @4, would that cause me to not enable SLI?


rene13cross said:
That shouldn't matter.


Oh but it does! Xfire will do x16 + x16, x16 + x8 and x16 + x4 but SLi will only do x8 + x8 or x16 + x16.
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