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View Full Version : Adding 7900 to 8800GTX setup to support third monitor


mrussell68
12-05-06, 03:26 PM
I have a new rig with a ASUSP5W DH Deluxe motherboard, 8800GTX, and two 30" Dell LCD's.

I have a Dell 24" and a 7900 Nvidia card collecting dust.

I would like to add the Dell 24" as a third monitor.

Can I install the extra card to support 3-4 monitors?

The 8800GTX driver from Nvidia seems to support on the 8800 series. Can you install two different video drivers to support this setup.

Anyone have this setup running?

I really don't want to buy another 8800GTX to add a third monitor.

Already have a 1000 watt powwer supply so I should be set with power.


Thanks


Marc

XFX Support
12-07-06, 11:10 AM
Good question and the answer is yes. You can have your 8800GTX support two monitors and use your 7900 to run a third. They will both have different drivers and of course you can not enable SLI.

XFX Support

Spartan 117
12-07-06, 12:35 PM
Good question and the answer is yes. You can have your 8800GTX support two monitors and use your 7900 to run a third. They will both have different drivers and of course you can not enable SLI.

XFX Support
I have a 7900 GTX sitting around, can you use that as a third PCI-E GPU for phisics processing and such, or what use is that 3rd PCI-E slot????

XFX Support
12-07-06, 01:09 PM
Nvidia is still keeping us guessing on if you will be able to acquire a PCI-E 16X physics card in the future. Right now people are only using that third PCI-E 16X slot for another video card to power even more monitors :)

XFX Support

mrussell68
12-07-06, 10:24 PM
Thanks XFX Support, I'll try it this weekend. My new CPU water cooler is coming tomorrow so I have to open my case any way.

larkin
12-07-06, 11:41 PM
i thought 30' monitors required both dvi outputs from the card. how can u power 2 with 1 card

stncttr908
12-07-06, 11:43 PM
i thought 30' monitors required both dvi outputs from the card. how can u power 2 with 1 card
Not so, dual link DVI ports can handle that resolution with one connector.

buffbiff21
12-07-06, 11:45 PM
i thought 30' monitors required both dvi outputs from the card. how can u power 2 with 1 card


Yes, Dual-link. I thought so too, no one else has brought that up!

Hmm. Maybe they can function at a lower resolution? without the dual link?

I plan on getting a 30 inch Dell soon, so I will let you know soon enough. ;)

crainger
12-08-06, 12:37 AM
Dual Link doesn't mean two cables. They simply have double the amount of pins.

Single http://www.datapro.net/products/1141.html

Double http://www.datapro.net/products/1148.html

I think cards since the 7 series were all Dual Link capable on both DVI ports.

dabblet®
12-08-06, 02:57 AM
At the risk of sounding naive (& not wanting to hijack this thread) I'm running 8800GTX in Sli to a single monitor - if I add an XFX 7900GT will that drive another monitor whilst leaving the other in Sli mode? Cheers

XFX Support
12-08-06, 10:40 AM
If your have a motherboard with three PCI-E x16 slots then you can run an interesting set up. You can run two video cards in SLI in two of PCI-E x16 slots (powering one monitor) and then you can put a third video card in the third PCI-E x16 slot that can power up two more monitors. You can also disable SLI and run two monitors off of each card for a total of 6 displays.

XFX Support

mrussell68
12-08-06, 03:51 PM
Well, I finally added the second video card. It is Nvidia 7900 GS OC.

Windows saw that I added a new card, but when I try and install the latest Nvidia 7900 series drivers it says there are no compatible cards. I assume the drivers only sees my primary 8800GTX card and not the secondary card I just aded.

Any ideas?



Just to refresh my initial post that started this thread is below.

I have a new rig with a ASUSP5W DH Deluxe motherboard, 8800GTX, and two 30" Dell LCD's.

I have a Dell 24" and a 7900 Nvidia card collecting dust.

I would like to add the Dell 24" as a third monitor.

Can I install the extra card to support 3-4 monitors?

The 8800GTX driver from Nvidia seems to support on the 8800 series. Can you install two different video drivers to support this setup.

Anyone have this setup running?

I really don't want to buy another 8800GTX to add a third monitor.

Already have a 1000 watt powwer supply so I should be set with power.

XFX Support
12-08-06, 04:11 PM
Try manually installing the driver. Go into device manager, highlight the third video card, right click and choose to update/install driver. Tell it "No" not to connect to the internet. Then choose to "Install from a list or specific location" and you can point it to where you have the driver stored (i.e. cd, or downloaded file).

XFX Support