Struggling with getting 3 Monitors working with Windows 7 64 bit Pro

I can't seem to get 3 monitors working in just about any combination with a brand new Dell Vostro 230 MT (Low Profile - SFF), I was able to get 2 working by adding a PCI card with one DVI and one VGA, it automatically disabled the on board VGA adapter...I also tried adding a 2nd video adapter with 1 VGA port and 1 DVI port bringing it up to a total of 5 video connections but cannot get more than 2 to work at any given time....Someone mentioned a S/W product called  Crossfire but haven't tried it yet?

Any Ideas ?
gtallisAsked:
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Hutch_77Commented:
Crossfire is a protocol to tie compatible cards together.
In the BIOS can you enable the onboard after adding the PCIE card?
IN device manager do you see all the ports?
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gtallisAuthor Commented:
The BIOS have several PCI options but none of them worked, and the onboard never comes alive regardless of what mode I put it in.

Device Manager only showed 2 monitors and one video adapter even with both cards in the PC?
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jamietonerCommented:
With this system the onboard is disabled when an addin card is installed. What are the makes and models of the other 2 cards?
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DigitalTechyCommented:
Yep, the compatibility falls between the cards and motherboard.  If you have two ATI - Crossfire or Nvidia -SLI graphic cards you can get 3 or four running.  However if they aren't very decent graphic cards even if you get three working the drivers/software may not allow you to have 3 independent desktops only 2 and one cloned.  In any case, as jamietoner suggested we could probably provide you with some more specific answers if you list the make and model of the cards/computer.
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gtallisAuthor Commented:
Not sure of the exact makes and models but I will verify in the AM. I believe one card is a Nvidia ne200 and the other is a 8200 but I need to confirm, not there at the moment.

I will reply in the morning.

Thanks for your input
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gtallisAuthor Commented:
OK didtaltechy I will verify that in the AM EST...

Thank you
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gtallisAuthor Commented:
Thanks to both of you Jamietoner and digitaltechy - come to find out the ST (Slim Tower) version of the Dell Vostro will NOT support more than 2 monitors regardless......We sent them back for replacment and purchased the MT (Mini-Tower) version of the Vostro and ordered it witht he 3 Port video adapter pre-installed which I know works for the same solution.
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