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Windows 7: Two Graphics Cards

19 Jan 2011   #1
christopher22

Windows 7 32 bit
 
 
Two Graphics Cards

Hi I have a Dell XPS and am trying to run three monitors from two graphics cards.

I have a Geforce 8400 graphics card and an ATI Sapphire Graphics card.

When I plug both in, one is using a pci express 16 slot and one is using a pci express 1 slot, there is no monitor signal.

I have tried the graphics card in the pci express 1 slot by itself and that does not work either.

Can anyone help, I have seen lots of conflicting info on the forums.


My System SpecsSystem Spec
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19 Jan 2011   #2
smarteyeball

 
 

Do you have the right drivers installed for each card?

nvidia will not (by default) allow an ATI card to be the primary video card.

With a single card in the pci-e x1 slot, do you get a signal in safe mode?
My System SpecsSystem Spec
20 Jan 2011   #3
alphanumeric

Windows 10 Education 64 bit
 
 

Plugging one of them into a PCIe x1 slot is probably not a good idea. If you check the minimum system requirements for each card I think you'll find a x1 slot isn't an acceptable option.
My System SpecsSystem Spec
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21 Jan 2011   #4
fishnbanjo

Vista 64 Ultimate, Windows 7 64 Ultimate, Ubuntu 9.10
 
 

What XPS DELL do you have and your specs don't include what your PSU is rated for, a bit more info if you please.
My System SpecsSystem Spec
21 Jan 2011   #5
WolfSoul

Windows 7 Ultimate 64 Retail
 
 

As far as I know.. most graphics cards are made for x16 slots
My System SpecsSystem Spec
21 Jan 2011   #6
christopher22

Windows 7 32 bit
 
 

I have been told that I would need two graphics cards that are the same and even then I am not sure if the pci 1 slot will work so I think I will go for a usb external graphics card just to be sure.
My System SpecsSystem Spec
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 Two Graphics Cards




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