Grphics Card - 3 Monitors

Hi Everyone,
Having isues selecting a new GFX Card. Have read the forum up and down, and am still not understanding what I should do. So my current system is as follows:
MacPro 3,1
NVIDIA GeForce 8800GT
2x - 22" Acer Monitors
OSX - 10.6.3
Processor - 2x 3GHz Quad Core Intel Xeon
Memory - 8GB
*Basically What I am trying to do, is add a 3rd monitor (a 32" LCD TV) for monitoring playback in Premiere Pro CS5, and utilizing the Mercury Playback Engine.
So I was wondering first, is this possible?
Can I use my existing card and then just add another with an HDMI out?
What card would be best?
Looking at something like a:
EVGA GeForce GTX 650 1GB
Any help would be great

HDMI out is signal-compatible with Single-Link DVI, and can be obtained from it by shuffling the signals around with just a cable (no actual adapter needed). 1080p is only 1920 by 1080, so Dual-Link DVI is not required.
DisplayPort and Mini DisplayPort feature a compatability mode that can be invoked by simply asserting a signal into the interface. This allows them to generate a Single-Link DVI or Dual-Link DVI that is timing-compatible with DVI -- BUT the Voltage levels are marginal.
The Apple-firmware 5770 (about US$250) is compatible with all models of Mac Pro, and drivers are in 10.6.5 and later. It supports two displays easily, but the marginal Voltage levels on DVI output catch up with you when attempting to run three displays with adapters or any Dual-Link DVI displays.
Third party ACTIVE [with signal boosters] Mini DisplayPort --> Single-Link DVI run about US$35, ACTIVE [with signal boosters] Mini DisplayPort --> Dual-Link DVI Apple brand runs about US$100, third-party models are comparable.
The Mac Pro 3,1 can run the Apple-firmware 5870 (about US$450), but some feel the price is not justified. Same restrictions on adapters.
Some advanced flashed PC-cards require 10.8.2 or show no picture until the login screen, or BOTH. MacPro 3,1 can run 10.8.2, but there are lots of reports of vague problems that we have not nailed down to a particular cause, but older graphics cards like the 2600 and 7300 are high on the suspects list.

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02:00.0 VGA compatible controller: ATI Technologies Inc RV370 5B60 [Radeon X300 (PCIE)]
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1280x1024 60.0*+ 75.0
1152x864 75.0
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
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1280x1024 75.0 60.0
1152x864 75.0
1024x768 75.1 60.0
800x600 75.0 60.3
640x480 75.0 60.0
720x400 70.1
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Last edited by MisterAnderson (2012-01-26 16:56:58)

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I'm going to lay the motherboard and all components
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Hi,
I've inherited a SunBlade with an XVR-1200 graphics
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Thanks for the help.

Hi-
The vertical lines being produced on the monitors will be due to a heat damaged graphics card.
Cleaning the graphics card fan and heat sink, as well as replacing the thermal compound may help, but it also may be too late.
AHT can test the VRAM of the card, but if the GPU is the problem, or, if it is a different chip that is damaged, the test will be inconclusive.
There are many card options listed here:
http://www.jcsenterprises.com/Japamacs_Page/Blog/4B4B7BA2-7ABB-47F1-87AC-B03D379 42BEE.html
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Hi there
Early 2008 I purchased a mac pro, with 2 8800gts and 1 2600xt. Works amazingly well, as it was originally purchased for number crunching (video cards were purchased to take advantage of openCL in snow leopard) and more screen realestate. (3 monitors)
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Are there any games that take advantage of multiple video cards???
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Thanks!

I'm sorry if my question was a little ambiguous, let me try to rephrase.
If anyone is familiar with the Nintendo DS system, you will understand that this handheld device has 2 screens.. one is used primarily as a game screen, the second screen has the game map or console or some kind of readout or whatever. Bottom line is, the game takes advantage of 2 screens.
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Are there any games in Mac OS or Windows that take advantage of multiple monitors, and therefore multiple video cards. Not SLI or Crossfire as I understand the Mac Pro hardware does not support it. My question relates to any software titles like Flight Simulators, that can render images on 2 screens connected to 2 separate video cards.
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Are there any games that are capable of rendering images or gameplay on 2 different video cards at the same time?
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Message was edited by: CALfire

Problem is Windows not liking to mix two brands, ATI and Nvidia.
Check out the ATI Radeon 3870 instead of another X1900.
http://www.barefeats.com has graphics benchmarks in OS X and Vista.
I used 7300GT and 8600GS together in Vista. The 8600 is only seen and useable in Vista but does not interfere in OS X (just black). eVGA seems to be most compatible PC card on Mac Pro.
You could run 7300GT and order the 8800GT from Apple, the one for just the pre-2008 Mac Pro, which would get along and work also and nice card in Windows but iffy in OS X and weak drivers.
http://www.barefeats.com/harper11.html Vista performance
http://www.barefeats.com/harper15.html legacy 8800GT
http://www.barefeats.com/harper17.html 3870 in Windows
http://www.barefeats.com/harper18.html 3870 in OS X
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Hi, all.
Did a new install of Arch on a spare PC the other day. I'd forgotten how great the distro was. I've run it for a few days and am happy with the X environment etc, so decided it's time to install Arch on my main PC.
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I usually follow this by running 'Xorg -configure' and copying the new config file to /etc/X11/xorg.conf.
For some reason that didn't work. I got an error message saying 'Number of created screens does not match number of detected devices'.
I've done some searching for solutions and installed the Nouveau driver, but I just can't seem to get X to work.
Can anyone help?
Many thanks,
Chris.

and if you try this? (not a solution, but could be a start)
delete your /etc/X11/xorg.conf (you can generate a new one later if needed )
make a file like this:
/etc/X11/xorg.conf.d/10-monitor.conf
Section "Monitor"
Identifier "MySunMonitor"
VendorName "Sun Microsystems"
ModelName "GDM-5410"
DisplaySize *** see in link ***
HorizSync *** see in link ***
VertRefresh *** see in link ***
Option "dpms"
EndSection
Section "Device"
Identifier "*** as in /etc/X11/xorg.conf.d/20-nouveau.conf ***"
Driver "nouveau"
EndSection
Section "Screen"
Identifier "Screen0"
Device "*** as in /etc/X11/xorg.conf.d/20-nouveau.conf ***"
Monitor "MySunMonitor"
DefaultDepth 24 #Choose the depth (16||24)
SubSection "Display"
Depth 24
Modes "1024x768_75.00" #Choose the resolution
EndSubSection
EndSection
link:
http://www.sunshack.org/data/sh/2.0/inf … t_CRT.html

Grphics Card - 3 Monitors

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