Tripple Monitor Intel MB D945G and NVIDA GeForce 6600 GT

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Cool Javelin

Cool Javelin

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I have an Intel D945G mobo with an integrated video, and also a PCI Express x16 slot.

Into the PCI slot, I have an NVIDA GeForce 6600 GT card with 2 DVI connectors.

I have seen the on-board SVGA work without the PCI card in place.

I am currently using both DVI outputs of the GeForce card.

When I plug in the GeForce, the bios seems to turn off the on-board SVGA.

I would like to have 3 monitors utilizing the two DVI connectors plus the on-board integrated SVGA connector.

May I please get some help working though this?

When I installed the driver for the GeForce, I got a control panel for it Version 2.8.313 (if that helps anybody)

The control panel sees both DVI connectors, and correctly identifies one monitor as a digital, and the other as an analog monitor.

The control panel does not find the on-board SVGA, neither does the Windows add new hardware.

Searching through the BIOS settings only yields setting the primary and lists the SVGA or the PCI card.

I am running WinXP SP3 with 4GB ram.

Thanks, Mark.
 
Solution
senkasaw
You cannot enable both the onboard video and the discrete video at the same time. The system can only use one or the other. And unfortunately your graphics card does not support three monitors.

I am afraid your only options are to get a new GPU that supports three monitors or go for a usb solution for the third monitor, which I personally do not prefer as the performance for a usb monitor is less than ideal. (something like this: http://www.amazon.com/Plugable-UGA-2K-A-2048x1152-1920x1080-DisplayLink/dp/B0038P1TP4/ref=sr_1_1?ie=UTF8&qid=1379110020&sr=8-1&)

The usb adapter powered monitors are good for basic stuff, like word processing or browsing. But the framerate is a bit choppy so anything more than that and it may be...
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senkasaw

senkasaw

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You cannot enable both the onboard video and the discrete video at the same time. The system can only use one or the other. And unfortunately your graphics card does not support three monitors.

I am afraid your only options are to get a new GPU that supports three monitors or go for a usb solution for the third monitor, which I personally do not prefer as the performance for a usb monitor is less than ideal. (something like this: http://www.amazon.com/Plugable-UGA-2K-A-2048x1152-1920x1080-DisplayLink/dp/B0038P1TP4/ref=sr_1_1?ie=UTF8&qid=1379110020&sr=8-1&)

The usb adapter powered monitors are good for basic stuff, like word processing or browsing. But the framerate is a bit choppy so anything more than that and it may be distracting.
 
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Solution
Cool Javelin

Cool Javelin

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Aug 12, 2011
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Thank you for this answer senkasaw, I do little that requires a fast frame rate, mostly bookkeeping, and CAD stuff. The once a month video I can watch on my DVI monitor.

I was using a USB adapter, but my wife kiped it.

Can you tell me the technical details why both devices cannot be used?

Thanks again,

Mark.
 
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senkasaw

senkasaw

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The switch between onboard graphics (powered by the cpu) and discrete graphics (coming from a pcie card) is turned off or on at the bios level. So basically at the hardware level. And they cannot both be turned on at the same time. Either the video signal gets sent through the pcie lanes or the onboard adapter coming straight from the cpu. I'm sure there is a reason for that, like bandwidth or something, but you would have to ask an engineer who designs the things :) Sorry.

As for your second question, yes you can run a second pcie card for extra monitors...windows 7 makes this easy. I have no idea what the setup process will be like in XP tho:) I'm sure there are tutorials out there.
 
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