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Three Monitor Options for Optiplex 780?

We have about 25 users who require 3 monitor support for real-time data analysis and tracking. These users do not fall into our workstation requirement group. IE, they would come nowhere near needing the performance availability of a workstation, albeit the necessity of the three monitors.  So its hard to justify one for their needs.

I am hoping there is a sound option available for providing Optiplex 780 and 760 users with support for three monitors. I should note, these are the Desktop models, the second smallest available which probably makes the choices that much more limited. Currently we run off the standard ati DVI and use the y-vga adapter allowing them their two monitors. If we add a second low-profile video card with vga connector, would the system allow three monitor's to be active? (windows xp and windows 7). I do not see a low-profile card that would allow two monitors off the dvi (vga y adapater) plus a standalone vga.

Any recommendations on how to accomplish this without a rip and replace?

Thanks guys!

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19 Replies
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2 Bronze

Re: Three Monitor Options for Optiplex 780?

I have a 780 supporting three monitors. I am using a Matrox P650 Low Profile (small case) PCI card to support the additional two monitors. Works fine under Windows XP, but thanks to Matrox, (grrrrr...) this card is NOT supported unter Windows 7.

Hope that helps.

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Re: Three Monitor Options for Optiplex 780?

Wizard Prang - Your reply is interesting.  I thought that as soon as an add-on video card is installed in a 780, the onboard video is disabled, no?  Or are you not using a PCIE card?  Thanks.

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Re: Three Monitor Options for Optiplex 780?

That was a couple of years ago.IIRC I was using a PCI card (which unlike PCI-E does NOT disable onboard)

I am now using a PCI card and a PCI-E card for a total of FOUR monitors.

You have my permission to be jealous 🙂

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RE: Three Monitor Options for Optiplex 780?

Ugh.

We are trying to get some of these set up for our VDI environment.  There are massive issues with the current setup, which is a PCI card and then the on-board card - Virtual Machines do not appear to like using two different video cards.

Is there any option to use both the on-board and an add-on PCI-E card for triple monitors?

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RE: Three Monitor Options for Optiplex 780?

Hi Wizard,

I have the optiplex 780 and would like to have a configuration like you with 3 or 4 monitors.

I see the PCI card does not disable the on board card, but the PCI-E card is supposed to disable it?

Is it not the case with yours?

You have the on board card activated, plus the PCI card.  And in addition you added a PCI-E card with 2 monitor outputs and it all works?

Would appreciate your feedback.

Thanks.

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RE: Three Monitor Options for Optiplex 780?

Which cards are you using if I might ask?

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RE: Three Monitor Options for Optiplex 780?

You need Low profile Dual DVI -A and 2 Dell X2026 Cables

http://www.amazon.com/Epic-Service-profile-bracket-adapter/dp/B00N83SQ0M

 

http://www.amazon.com/Dell-X2026-DVI-I-Splitter-Female/dp/B002UG8S42

 

When you attach the 2 cables to the DUAL DMS59 DVI - A ports you get 4 monitors.

DOES NOT WORK With DVI-D

You can have 2 DVI and 2 VGA.


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RE: Three Monitor Options for Optiplex 780?

Thank you Speedstep.

Yet I don't understand.  This card only has 1 DVI out.  So if we put a splitter we get 2 monitors.

How do we get 4 monitors with this 1 card?

Or do you mean we have to have 2 of these cards installed to get 4 monitors?  

If so, unfortunatley I only have 1 PCI-e slot available.

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RE: Three Monitor Options for Optiplex 780?

I have two cards - one PCI express, one standard PCI, both have DMS-59 outputs, NOT DVI.

Each supports two monitors via a splitter cable, hence four monitors.

Works fine under Windows 7 Enterprise.

Both cards are made by ATI.

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