Triple Monitor Issue

Hey all,

Just did a new install of a Optiplex 780 with dual Nvidia Quadro NVS 290 graphics cards (1x PCI-e x16 and 1x PCI-E x1) on Win7 Professional 32 bit.  I have multiple machines running with a similar configuration to drive 3 monitors on XP 32 with no issues at all.

On this Win7 machine, it seems impossible to enable all three monitors with both secondary monitors set to extended, either through nview or through Win7 display configuration.  I can enable the two secondary displays as a clone of each other, but can't setup both as extended.  I whenever I go to enable the third display as extended, it shuts down the previously extended monitor.

I have a Win7 32  Opt780 running a single Radeon HD 4350 (which has 2xDMS59 connectors) and that supports the triples with no issue.

I tried to find articles on nview or the dual card setup having issues on Win7 with no success.

So, my question is, can 3 (or 4) monitors be connected as extended desktops using this setup on Win7.

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It is possible.  I just built a computer for a company that had 8 monitors.  Of course the setup was different since I had built a custom machine but with the board, it would not recognize multiple cards and monitors properly without having identical cards.  And by identical I mean in every possible way.  Your issue may be that you are using a PCI-e x16 and a PCI-E x1.  Assuming that motherboard has two identical connectors somewhere, I would see if you can get your hands on another card of the same type, mode, and version.

Another option...have you tried updating your BIOS?  Sometimes the BIOS is what screws it up.
thunder88Author Commented:
I originally thought that too, that everything had to be identical, but I have over 20 other machines using a X1 and X16 card in tandem with no issue.  With that being said, Win7 doesn't seem to like just the extend option, all the monitors can be used by the system (meaning all the cards are working), I just can't get them to do what I want (driver/software issue... I think).  I will try a BIOS update for giggles, but I think its either a setting in Win7, a nvidia driver issue, or it simply isn't supported like it was in XP.
Hmmm my apologies then.  It appears I did not fully understand your original statement.

I assume the manufacturer has Windows 7 drivers available for the cards?  If you didn't install them yourself, I would recommend doing that.  The other thing I would check is to make sure that Windows 7 has full support for the video cards.  I have a card in a Windows 7 box that isn't fully supported and won't let me use the second monitor.

I'm sorry if some my suggestions seem like stabs in the dark.  I am going on my past experiences with Windows 7, which I'll admit is not a whole lot.

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thunder88Author Commented:
Someone else stabbing in the dark with me is always better than stabbing alone.  I am using the latest drivers from Nvidia, which has Win7 32 bit specific drivers, and I installed them myself as the whole graphics card deal is done after market.  I checked MS's compatibility site, and it doesn't like these cards are specifically listed, whereas the Radeon is listed, so maybe that is the issue.  Seems a bit odd, but I guess thats drivers for you.  I will check a bios update and see if there is anything else I can do, but looks like I will be picking up an ATI for it.
I am not sure why this is happening. But you should note that in Vista and Windows 7, you do not have the horizontal span option. That means that the monitors will be seen independently by the OS, rather then as one extra wide (3 monitors) screen.
Make sure your cards are not running in SLI.

Sli combines the processing power of the 2 graphics cards into 2 video outputs rather than the 4.
I get the impression from your statement above that you are trying to run nVidia and ATI together...

No Dice dude.  That's your problem.  Choose one brand or the other.  

with PCI / AGP you could, with PCI-E, you have < 1% chance of getting nVidia to work with ATI

Quote -

Hello David,
 Thank you for the update.
 Please be informed that it is not possible to have both an ATI card and  an NVIDIA card in the same computer. Therefore, I am sorry to say that  it is not possible to have an ATI card as a GPU and an NVIDIA card as a  PPU.
 Please feel free to contact us for further questions.
 Best Regards,
 NVIDIA Customer Care
thunder88Author Commented:
This was not the issue, it was 2x nvidia NVS 290 cards working together in a non sli environment.  They did not function properly paired under Win7, even though under XP there is no issue.  Since then I got a single ATI firepro card which worked like a charm.  I am assuming that the dual NVS 290 configuration is simply not supported by Win7.
thunder88Author Commented:
Win7 does not officially support either the NVS 290, or 2 NVS 290s working in a non SLI pair.
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