3 monitors - different video cards

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garyhall

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Jul 13, 2008
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I have 2 1920 x 1200 24 inch monitors working perfectly using a single NIVIDIA GeForce 6600 video card on a XP pro and a 650 watt PS. Mother board is an Intel P4 3.4E socket T/775.

I want to add 2 more monitors. I first tried to add the 3rd monitor by installing an ATI Radeon 7000 PCI card for a 20 inch 1680 x 1050 monitor. Seemed to install O.K. and shows up in the device monitor display adapters and working O.K. along with the NIVIDIA 6600.

The control panel shows 2 monitors (not 3) and when identifying the 2 boxes the 2 24" monitors show the left as 1(one) and the one on the right as 3 (three). I suppose the one I am trying to add is number 2 (two).

Interestingly enough I can move my cursor from #1 across to #3 without any hesitation. Upon further investigation the new monitor (2) shows the resolution as being -1 pixels by -1 pixels.

So I am confused at this point - would it be better to buy 2 more NIVIDIA cards? The 2 monitors I wish to add have different resolutions 1680 x 1050 and 1600 x 1200 that is my reasoning for 2 additional cards.

Thanks.
 
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