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Eight 22" Monitors

Forum Graphic & Displays : Nvidia - Eight 22" Monitors

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smanion   06-07-2009 at 05:20:42 AM

Happy Father's Day, dads. If you're not a dad, call one.

I have 2 Quadro 1400 cards on a motherboard that has 2 full PCI express 16 slots. (doesn't drop to 8 when both are used) Goal is to run eight 22" monitors. Each Quadro has two dual DVI-I outputs. My monitors each have one Dual DVI-D and two VGA inputs. To begin, on one card I have installed 2 dual DVI-D Y cables and 4 single (not dual) DVI-D cables to 4 monitors. I get 3 independent displays and 1 clone. Clones I don't need. Is this a driver or setup problem; or do I need a different cabling arrangement?

Thanks for your help.

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mindless728   06-07-2009 at 05:36:22 AM
- 0 +

you need more dvi out connections

two of these would suffice - 4850x2 (4 dvi)
http://www.newegg.com/Product/Prod [...] 6814102813

you might have to disable the onboard crossfire tough


Message edited by mindless728 on 06-07-2009 at 05:36:51 AM
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smanion   06-07-2009 at 06:07:31 AM
- 0 +

Please explain. Each card has 2 dual outputs. 2 dual ports per card card X 2 DVI Y cables = 4 DVI outputs X 2 cards = 8 outputs. Problem is that on each card I get 3 independent screens and one clone.
Does crossfire effect this issue?


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mindless728   06-07-2009 at 05:40:49 PM
- 0 +

your cards don't have crossfire, whats happening is each card can only handle 3 outputs at a time, to do 8 monitors you would need at leas 3 GPU's

the solution i provided gives you 4 GPU's (2/card), you could replace the last one with a lowend card with 2 dvi out and hook monitors to it

so the setup would be on the back of the cards
4850x2
dvi dvi-splitter
dvi dvi-splitter
lowend card (HD4650)
div div-splitter

HD4650
http://www.newegg.com/Product/Prod [...] 6814131133

if this isnt clear then each row would have 3 monitors(1 from dvi 2 from dvi with splitter) except the last card would use just 2 monitors

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AKM880   06-07-2009 at 05:48:57 PM
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^ Doesn't the DVI splitter just make the screens clone?

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mindless728   06-07-2009 at 06:09:54 PM
- 0 +

^that's what i thought

it doesn't sound like it though, he says he gets 3 outputs and 1 clone per card using 2 splitters

Reply to mindless728
mindless728   06-07-2009 at 06:09:30 PM
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though, i would go 2 4850x2 4dvi just in case

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AKM880   06-07-2009 at 07:06:57 PM
- 0 +

^ +1. That would get you 8 DVI outputs but not clone mode.

Reply to AKM880
mindless728   06-07-2009 at 11:51:51 PM
- 0 +

its what i would do for that many displays,though, this isnt the first time ive had to recommend that card for multi displays


Message edited by mindless728 on 06-07-2009 at 11:54:03 PM
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