Two 8800 GT in 2008 Mac Pro (NO SLI)

I was wondering if an Apple tech could give me an answer on this subject; or anyone, really.
I want to get a new Mac Pro with an 8800 GT. I would like two of them, and would purchase the second as the add-on kit from the Apple Store. Now, will two be supported?
Power Draw: 220 watts, so it's under the limit
Power cables: they each need an external one, and there are at least two in the Mac Pro
PCIe slots: there are two 16x 2.0 slots, so bandwidth wouldn't be a problem
Just... can it be done?
Also, on the nVidia website, they state that the 8800 GT has only one dual-link DVI port. In addition to this, they state that you can have four 8800 GT in your Mac Pro. *This needs to be fixed before someone fries their motherboard!*
Message was edited by: Tallest Skil

So, I just ordered my new MacPro with the 8800GT and also got the add-on kit for the extra 8800GT...I will be powering a total of 3 24-inch Dell monitors with the 2 cards. They will go in slots 1 and 2, the 16x slots. According to my Apple business rep, they will work no problem. However, I still have 2 additional questions myself on this:
1. Where did you learn that the 8800GT draws 110 watts? I just can't find that stat anywhere...
2. Assuming you are right that they draw 110 watts, and with 2 that means 220 watts, and we know for a fact that we have an absolute ceiling of 300 watts on the PCI bus, am I going to have a problem if I am also running the BTO Raid Card that uses slot 4???
...or phrased another way...
3. Does the MacPro RAID card use more than 80 watts? If it does, I am likely SOL to run all 3 of these powerful PCI cards at the same time...that would suck but would lead to one final question...
4. If I am SOL on the use of all 3 because of power draw, would the ATI Radeon 2600 possibly have less draw than the 8800GT, in which case I may be able to run 2 of those instead of the 8800GT's, along with my RAID card?
Basically, the RAID card is not optional for me, I will be using it, no question. If push came to shove, I would move down to the 2600 graphics cards if the 8800GT's are too much power draw.
Good thread man, I can't seem to find power draw spec on the RAID card. AHHHHHHH!!!!!!!!!!

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    Panics Since Last Report:          1
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    0xffffff82ea652f10 : 0xffffff80028a199b
    0xffffff82ea652f30 : 0xffffff8002865623
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    BSD process name corresponding to current thread: revisiond
    Boot args: arch=x86_64
    Mac OS version:
    12E55
    Kernel version:
    Darwin Kernel Version 12.4.0: Wed May  1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64
    Kernel UUID: 896CB1E3-AB79-3DF1-B595-549DFFDF3D36
    Kernel slide:     0x0000000002600000
    Kernel text base: 0xffffff8002800000
    System model name: MacPro3,1 (Mac-F42C88C8)
    System uptime in nanoseconds: 17103336694
    last loaded kext at 15943261762: com.apple.driver.AppleHDAHardwareConfigDriver          2.3.7fc4 (addr 0xffffff7f844d3000, size 16384)
    loaded kexts:
    com.uaudio.driver.UAFWAudio          4.1.1 16344
    com.motu.driver.USBMidiKext          1.6 49190
    com.uaudio.driver.UAD2System          7.1.0
    com.motu.driver.PCIAudio          1.6 57985
    com.apple.driver.AppleHDAHardwareConfigDriver          2.3.7fc4
    com.apple.iokit.CSRBluetoothHCIControllerUSBTransport          4.1.4f2
    com.apple.driver.AppleHDA          2.3.7fc4
    com.apple.iokit.IOUserEthernet          1.0.0d1
    com.apple.driver.AppleUpstreamUserClient          3.5.10
    com.apple.driver.AppleMCCSControl          1.1.11
    com.apple.Dont_Steal_Mac_OS_X          7.0.0
    com.apple.kext.AMDFramebuffer          8.1.2
    com.apple.driver.AppleMCEDriver          1.1.9
    com.apple.driver.ApplePolicyControl          3.4.5
    com.apple.ATIRadeonX2000          8.1.2
    com.apple.driver.AppleLPC          1.6.0
    com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
    com.apple.driver.CSRHIDTransitionDriver          4.1.4f2
    com.apple.driver.AppleFireWireStorage          3.1.7
    com.apple.driver.initioFWBridge          3.1.7
    com.apple.driver.IOFireWireSerialBusProtocolSansPhysicalUnit          3.1.7
    com.apple.driver.LSI_FW_500          3.1.7
    com.apple.driver.Oxford_Semi          3.1.7
    com.apple.driver.StorageLynx          3.1.7
    com.apple.driver.PioneerSuperDrive          3.1.7
    com.apple.iokit.SCSITaskUserClient          3.5.5
    com.apple.driver.XsanFilter          404
    com.apple.iokit.IOAHCIBlockStorage          2.3.1
    com.apple.driver.AppleFileSystemDriver          3.0.1
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
    com.apple.BootCache          34
    com.apple.driver.AppleUSBHub          5.5.5
    com.apple.driver.AppleIntel8254XEthernet          3.1.1b1
    com.apple.driver.AppleFWOHCI          4.9.6
    com.apple.driver.AppleAHCIPort          2.5.2
    com.apple.driver.AppleIntelPIIXATA          2.5.1
    com.apple.driver.AppleUSBEHCI          5.5.0
    com.apple.driver.AppleUSBUHCI          5.2.5
    com.apple.driver.AppleEFINVRAM          1.7
    com.apple.driver.AppleACPIButtons          1.7
    com.apple.driver.AppleRTC          1.5
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleSMBIOS          1.9
    com.apple.driver.AppleACPIEC          1.7
    com.apple.driver.AppleAPIC          1.6
    com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0
    com.apple.nke.applicationfirewall          4.0.39
    com.apple.security.quarantine          2.1
    com.apple.driver.AppleIntelCPUPowerManagement          196.0.0
    com.apple.driver.AppleUSBAudio          

    com.uaudio.driver.UAFWAudio          4.1.1 16344
    com.motu.driver.USBMidiKext          1.6 49190
    com.uaudio.driver.UAD2System          7.1.0
    com.motu.driver.PCIAudio          1.6 57985
    Remove the third party uaudio and motu drivers then restart your Mac.
    Once I restart from safe mode - the mac seems to start fine and I am using it without issue
    Safe Mode only loads required kernel extensions which is why Safe Mode works, "without issue" ...

  • I have an early 2008 Mac Pro and want to install a 3TB internal hard drive. Is this compatible? The manual indicates 1 TB per bay, but I have already installed two 2 TB hard drives in two other bays, and have had no problems. Any suggestions?

    I have an early 2008 Mac Pro and want to install a 3TB internal hard drive. Is this compatible? The manual indicates 1 TB per bay, but I have already installed two 2 TB hard drives in two other bays, and have had no problems. Any suggestions?

    RE: SATA Bus speed:
    Typical Rotating drives available today, whatever their SATA spec, can source data off the spinning platters no faster than about 125MBytes/sec.
    SATA 3 is rated at 6G bits/sec, which theoretically is about 750 Mega Bytes/sec
    SATA 2 is rated at 3G bits/sec, which is theoretically about 375 Mega Bytes/sec
    SATA 1 is rated at 1.5G bits/sec, which is theoretically about 187.5 Meg Bytes/sec
    None of the SATA Busses is a bottleneck for consumer Rotating drives you can buy today. Trying to speed up the SATA Bus will not provide any real-world performance increases for Rotating Drives.
    https://discussions.apple.com/message/22690384

  • Need help with graphics card options for an early 2008 mac pro

    Hello,
       I have an early 2008 mac pro with 2 x 3.2 GHz quad core Intel Xeon and 6Gigs of ram, currently running with an Nvidia Geforce 8800 GT with 512mb.
        It is also running 10.7.2.
       I would like to either add a video card on top of the one I am currently running or replace it completely if necessary.
       I do video editing on the Mac, no gaming and only a small amount of photoshop, and as the resolutions get larger I would like to have my machine keep up.
       My questions are,
         1. What cards would you the community suggest?
         2. Can I add a whole other card to my system or do I have to replace the current one?
         3. If I can hold two cards what special accomidations would be needed in regards to final cut performance if any?
        Thank you for any help you would like to give.
      Rob

    The two main cards for mac pros are the apple versions of the  ATI Radeon 5770 and 5870.
    The 5770 requires one aux power adaptor and the 5870 requires two.  So generally you could only have one 5780 or two 5770's.
    Video cards which don't require aux power should be able to coexist with these cards so log as it's all within the power supply maximums of course.

  • Help with new video card for 2008 mac pro

    I was looking to upgrade the speed of my 2008 Mac Pro Video
    I currently have a nvidea 8800 512mb
    Looking for any suggestions?
    I need something that will not block the 2nd 2.0 pci slot?
    From my understanding my mac has two 2.0 pci slots and one is used by the video card?

    http://www.ebay.com.au/itm/Nvidia-GTX-780-3-GB-for-Apple-Mac-Pro-/331071998403?n ma=true&si=TLQfb78DRSdpDaz0cZAp4FFlvP8%253D&orig_cvip=true&rt=nc&_trksid=p204767 5.l2557
    this Nvidia GTX 780 is the best your mac can handle safely, the card can work on 1 slot at around 95% according to another site:
    http://www.techpowerup.com/reviews/Intel/Ivy_Bridge_PCI-Express_Scaling/3.html
    this is what i plan to use in my mac pro 3,1

  • Multiple graphics cards on 2008 mac pro, won't work

    Hi, I have a 2008 Mac Pro 2 x 2.8 GHz Quad Core Intel Xeon with 14 GB 800 MHz DDR2 FB-DIMM. I have used a ATI Radeon HD 2600 Graphics card connected to 2 x BenQ E2400HD screens. Now, I want 4 screens so I bought a NVidia Geforce 8800 GT graphics card as I found these to be compatible with my setup on Ebay (only place I could find it). Got it in a brand new condition in a Apple graphics card box so should be all good. Put it in PCI-E slot 2. Now when I started my Mac after installing I could hear a loud fan noise (fan going on max speed) and tracked it to the new graphics card. When I open the system profiler it shows up as a display. The screen connected to the graphics card with a DVDI-cable does not show an image and the screen indicates that it does not have an input. Any ideas what's wrong here? Is my graphics card broken?

    More than likely you got wrong verion.
    1,1 and 2,1 Mac Pros are EFI32, and for Nvidia cards need proper version.
    If your machine is a 3,1 or later you need an EFI64 version.
    Contact the seller and clarify.
    If you install "ATY_Init" and are running 10.6.8 you will find the card will work once machine boots all the way.
    You could then flash the card into proper version if you were especially clever with things like that.
    But your seller should help you.
    You need to know "Model Identifier"
    http://macvidcards.com/macpro/which-mac-pro-do-you-own/

  • Why are there so many problems with the early 2008 Mac Pro ???

    Hi everybody out there using Mac Pro's early 2008,
    I found out there is a lot of problems with the early 2008 Mac Pro.
    My early 2008 Mac Pro has been repaired ones under warranty and now it stopped working again ! Also see under: Mac Pro early 2008 no chime and does not start up. Why is this ????
    It worked well for about 2 years and then it just fails and i had this failing issue twice already !!! Is this just a BAD Apple product or how do you think I need to approach this. Let’s face it, these machine don’t come cheap and you at least expect them to work without problems for 4-5 years. What is happening here ???
    Cheers, Kavango

    go to a black screen after 15 minutes or a couple hours
    That is probably an indication that you need to find a new graphics card.
    RE: Mac Pro Replacement Graphics cards
    1) Apple brand cards,
    2) "sold in the Apple store" cards, and
    3) "Mac Edition" cards ...
    ... show all the screens, including Boot up screens, Safe Mode, Installer, Recovery, debug screens, and Alt/Option boot screens. At this writing, these choices include:
    1) Apple brand cards:
    • Apple-firmware 5770, about US$250** works near full speed in every model Mac Pro, Drivers in 10.6.5
    • Apple-firmware 5870, about US$450
    2) "sold in the Apple store" cards
    • NVIDIA Quadro 4000, about US$1200
    • NVIDIA Quadro 5000, about US$2500
    3) "Mac Edition" cards -- REQUIRE 10.8.3 or later:
    • SAPPHIRE HD 7950 3GB GDDR5 MAC Edition, about US$480** Vendor recommends Mac Pro 4,1
    • EVGA GTX 680 Mac Edition, about US$600
    The cards above require no more than the provided two 6-pin aux power connectors provided in the Mac Pro through 2012 model. Aux cables may not be provided for third-party cards, but are readily available.
    If you are Meet ALL of these:
    • running 10.8.3 or later AND
    • don't care about "no boot screens" etc AND
    • can re-wire or otherwise "work out" the power cabling, THEN:
    You can use many more cards, even most "PC-only cards"

  • When I power up my 2008 Mac Pro I get the "welcome", chime, fan goes on, a light goes on on my Apple monitor and then nothing - black screen.  Whats going on?

    When I power up my 2008 Mac Pro I get the "welcome chime", fan comes on, a light comes on on my Apple moniter and then nothing - black screen. What,s going on?

    what you describe as the "welcome chime" is the indicator that your Mac has passed the Power-On Self test, and if a suitable source of software can be found, booting is likely.
    If the screen stays dark, the most likely explanation is a graphics card failure. But it could also be caused by a backlight failure in the LCD, so be sure you try shining a bright light at the screen to be check whether the picture is there, but just not illuminated.
    Graphics card failure will end the boot-up process in some cases, and not have an impact in others. Two external indications you can use when your display is not working are: The Caps Lock key, which is under the control of Mac OS X, and the Control-Eject dialog box shown below. Note that the default is Shutdown, so a Mac that shuts down in response to Control-Eject followed by Return is working fine.

  • Early 2008 Mac Pro + ATI Radeon HD 4870 = Not working

    Just took delivery of my new HD 4870 video card today. I installed it in my Early 2008 Mac Pro and booted up. I got a picture no problem on one monitor, but nothing on the other. Furthermore, the display perfpane was missing a lot of controls, like Arrangement and Detect Displays and whatnot.
    I did a bunch of rebooting and swapping of cables, and determined that both the mini-display port and the standard DVI connection will drive a monitor. However, if both are plugged in, the only active display is the one plugged into the mini-display port, and there's no option to setup the secondary display.
    So I booted into bootcamp, and it automatically recognized both display ports, and mirrored my desktop on both monitors. I downloaded and installed the latest windows drivers, rebooted the machine into windows once more, and was able to configure a multiple monitor display with no problem.
    This tells me it's not the card and it's not the motherboard.
    Booting back into mac OS, I discovered that it doesn't even recognize that the card has video ram. It thought I had no video ram in the system.
    So, this all leads me to the conclusion that Apple shipped me a card that it has not yet provided driver support for.
    Hey Apple, can I have my 4870 display driver now?

    Hi again,
    It was funny to read all your answers on my iPhone while away from my computer. I could have reply on the iPhone but I preferred to wait to give you all the procedure I used to install the beta driver successfully this morning.
    To start, I found this link:
    http://www.insanelymac.com/forum/index.php?showtopic=155477
    and followed the "4870 INSTRUCTIONS", starting like suggested by doing the "First, follow the 4850 INSTRUCTIONS above"... (See the link)
    I would like also to specify that I did this without having installed the card physically yet. So I kept my HD 2600 in the computer, followed all the steps excepted for the step 3:
    3. Reboot with -f -v (kextcache/verbose mode)
    There is no -f nor -v switches available for the reboot command at the shell prompt. I simply rebooted as usual "Pomme -> Redémarrer".
    After the reboot, all my software was still working as expected with my HD 2600 card, meaning that these steps are specific and active only for the HD 4870 when it's detected at boot-up.
    You may have to Google for the string "Kext" in order to get the application to install the file ATY_Motmot.kext. For your information, ATY_Motmot filename is the same string as the one found under "System Information ->PCI cards" under "Name".
    I get:
    ATI Radeon HD 4870:
    Name: ATY, Motmot
    The article is not clear regarding where to find the OpenGL.framework to backup before installing the downloaded one. I found mine under:
    /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/OpenGL.framework
    After having shutdown the computer, just after the reboot that proofed everything was ok, I removed the original HD 2600 card and put back the new HD 4870 and boot up...
    Then I check the "System Information" and found both "Quartz Extreme" and "Core image" supported!
    I launched Aperture, got it!
    I launched Final Cut Express, got it!
    I launched Starry Night Pro Plus, got it! Then I checked the OpenGL settings in Starry Night Pro PLus and activated both options:
    Use shaders where available
    Use AllSky shader (Not compatible with all hardware)
    When I was doing these actions with my original HD 2600 card, the software was giving me a warning that my hardware did not support these options and that it could crash.
    This time, with the HD 4870, it accepted my settings and give me back a very beautiful blue sky with much more shades!
    So in conclusion, it works very smoothtly with my system and I am writing this with two monitors, having bought the MiniDP to DVI adapter this afternoon
    I am happy!
    P.S.: A girl from Apple support called me back this afternoon regarding my problem. She was very happy two when I told her that I did apply the beta driver and that it was working very well...
    Good luck and best regards...

  • I want to upgrade my 2008 Mac pro to the latest one, will it meet the requirement for the future Software that's coming out for the next four years?

    I want to upgrade my 2008 Mac pro to the latest one, will it meet the requirement for the future Software that's coming out for the next four years?.

    I'd wait. What can't you do that you need? You mean you want to buy a new model, then why not wait for an actual new one, not the two year old 5,1, when you need to and have outgrown.
    Yours will run Mountain Lion. yours is 4 yrs old and still supported and has life left.

  • Apple's ink preference option, randomly appears 2008 Mac Pro???

    Ink or inkwell. Is Apple's own handwriting recognition program It is included in leopard and is only available if your mac detects the presence of a wacom tablet.
    I don't have a wacom tablet, nor have I ever used one. Yet the ink icon has just recently began appearing randomly. A small menu icon, appears next to the volume control in the menu bar. It also appears under system preferences between keyboard and mouse and the print and fax preferences.
    The ink icon and preference option will just mysteriously also disappear within a few minutes.
    I don't have a wireless card in my mac pro. I also double checked to see if all bluetooth options are turn off. I have two hard drives both with separate installations of OS X. This has happened on both installs.
    The only thing new is a airport extreme base station. The airport is being used by only two computers my 2008 mac pro and a imac out in the living room. Both are using ethernet no wireless.
    At first I suspected the airport was picking up a stray signal from a neighbor using a wacom tablet.
    But I think thats unlikely since any wireless tablet would be using bluetooth.
    I did also upgrade to ilife 09. Again I don't see how ilife 09 could cause trouble like this.
    I have googled to see if anyone else may have experienced anything like this. I have found nothing helpful.
    Any one have any ideas To what might cause this?

    Anyone?
    Just today at the early A.M. my mac pro woke from sleep
    May 6 03:23:38 johns-mac-pro kernel[0]: Wake reason = UHC3 EHCI
    May 6 03:23:38 johns-mac-pro kernel[0]: System Wake
    May 6 03:23:38 johns-mac-pro kernel[0]: Previous Sleep Cause: 5
    May 6 03:23:38 johns-mac-pro kernel[0]: USB (EHCI):Port 6 on bus 0xfd connected or disconnected: portSC(0x101803)
    May 6 03:23:38 johns-mac-pro kernel[0]: USB (UHCI):Port 2 on bus 0x5d connected or disconnected
    May 6 03:23:38 johns-mac-pro kernel[0]: IOBluetoothHCIController::terminateWL .. done
    +See how it mentions bluetooth?+
    +Here is what a normal wake from sleep looks like for me+
    May 6 05:39:51 johns-mac-pro kernel[0]: System Sleep
    May 6 12:50:54 johns-mac-pro kernel[0]: Wake reason = EHCI
    May 6 12:50:54 johns-mac-pro kernel[0]: System Wake
    May 6 12:50:54 johns-mac-pro kernel[0]: Previous Sleep Cause: 5
    May 6 12:50:54 johns-mac-pro kernel[0]: USB (EHCI):Port 5 on bus 0xfd has remote wakeup from some device
    All bluetooth options are turned off. I have no bluetooth devices nor have I ever used one with this mac. I also have wake for ethernet administrator disabled. I also checked to see if their were any scheduled wake events.
    Just before this morning on the advice from Apple care I did both a PSM and PRAM reset. To see if that would element the random appearing ink icon. From My first post.
    I think Their is a problem with my bluetooth chip receiving signals when is not sopped to. The chip is not turning off?
    Ant ideas
    Message was edited by: rpaloalto

  • 24" Cinema Display (LED) with 2008 Mac Pro

    My 23" Cinema Display monitor is beginning to show signs of aging, having been used with two Mac Pros and a G5. I'd like to upgrade the monitor to a 24" LED Cinema Display, but the 2008 Mac Pro doesn't have the mini-DVI port. Is there any upgrade path here? The new (unavailable) ATI Radeon card?, mini-DVI to DVI adapter (monitor to computer)? I can't believe Apple would leave recent Mac Pro owners with no path to upgrade the monitor (save for the overpriced 30" non-LED monitor).

    The nVidia card says it is specifically for the 2009 Mac Pro, while the ATI says it is for the early 2008 or the early 2009. The hard to get ATI appears to be the only card available for the 2008 that has the mini-DVI plug. I'd love to be able to get the less expensive card, but the early 2009 uses different memory than the early 2008.
    The cards have been used successfully in Mac Pros older than thiose listed by Apple
    <http://www.barefeats.com/nehal06.html>
    "If you didn't buy a new 2009 Mac Pro but want to use the new graphics cards released with the Nehalem Mac Pros, you can buy the GeForce 120 GT and Radeon HD 4870 in kit form from Apple. They both worked in our 2008 Harpertown 3.20GHz Mac Pro as you can see from the graphs above. We also got the Radeon HD 4870 to run in the 2007 Clovertown first generation Mac Pro. A close colleague has one working in the 2006 Woodcrest first generation Mac Pro."
    <http://blog.macsales.com/602-testing-those-new-graphics-cards>
    This report says the Radeon HD 4870 Mini DisplayPort didn't work in the older Mac Pros, but hat may be fixed when 10.5.7 appears.

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