Connecting dual monitors

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January 15, 2009 at 13:41:35
Specs: Vista 32 bit, X26000/ 4GB DDR800
I have a Geforce 9800GT running twin Sony 19" monitors via DVI but no longer have the space for them so I bought a Dell 20" screen which I have on that card. However, I also have a spare 19" TFT so I am going to mount this on the wall to the right of the main screen and use it as a second monitor. The monitor is not that good really and is only good for web surfing, documents etc. It will not be for gaming or graphics work (the dell is for that).
Now the monitor is only VGA and my mobo has built in graphics (Geforce 7 series) so before I go looking for a DVI to VGA convertor to run both monitors off the 9800GT, I wondered if there is any advantage to running the second monitor off the onboard graphics leaving the main card to run the dell. I heard that running two monitors off one card can cause some slowdown but would this setup be any better?

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#1
January 15, 2009 at 15:54:24
I didn't think you could use the integrated PCI e and an Add-in PCI e card at the same time. However, I came across the article linked below. The article is about Integrated ATI graphics but nvidia may have something similar.

http://www.tomshardware.com/reviews...


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#2
January 15, 2009 at 16:37:26
You may be right however, looking at the spec of the board it mentions dual VGA support using D-SUb and Dvi and the mobo only has D-Sub:

http://www.asrock.com/mb/overview.a...


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#3
January 15, 2009 at 16:50:07
Oops, my mistake, it does have both DVI and VGA on the mobo which is the dual VGA support it offers but a quick read of the manual explains how to get a surround display using the onboard and a PCI-E card:

"This motherboard supports surround display upgrade. With the internal dual VGA
output support (DVI-D and D-Sub) and the external add-on PCI Express VGA card,
you can easily enjoy the benefits of surround display feature."

So maybe I can do this but the question remains: would I get any benefit? The board is HD ready so it must be capable of running most web/video and office stuff OK. Only downside I see is it would take its memory from the main memory but I have 4GB. I do a lot of CAD and Photoshop stuff on the Dell monitor, with the odd game of Crysis, Bioshock etc.


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Related Solutions

#4
January 15, 2009 at 19:26:47
The system memory is much slower than dedicated graphics RAM.

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#5
January 16, 2009 at 01:33:17
Not that worried about how fast the second monitor will run as it will only be for web and word stuff. I was just trying to keep the main monitor running at its full potential....and maybe save hunting around for a DVI to VGA adaptor :-)

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#6
January 16, 2009 at 03:51:22

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#7
January 16, 2009 at 04:46:37
Cheers but I meant hunting around in the loft! ;-)

Thanks for the link though.


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#8
January 16, 2009 at 04:48:24
I squirrel those small parts away in a drawer so they don't get mixed in with the boxes of cables, cards, etc.

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