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Thread: Mac Pro - 8800GT Upgrade / Bios Flash Mod

  1. #17
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    Unhappy Re: Mac Pro - 8800GT Upgrade / Bios Flash Mod

    Hi guys.

    I did almost the same that DR did but my computer doesn't boot on OSx.

    I have Freebsd on the same HD and when I boot with it I can see the Nvidia 8800 but when I boot in OS X I get a kernel panic and after that I have to power off.

    I have Still the ATi 2600 in place and the Nvidia on the motherboard together, I don't know if this is a issue or not.

    I reed some other forums and they talk about the Device ID and the KEXT but I'm not sure if I have to do it or not.

    anyone have some ideas ?

    I have 1.5 last update.


  2. #18
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    Re: Mac Pro - 8800GT Upgrade / Bios Flash Mod

    Quote Originally Posted by ChewyPixels View Post
    DR, can you post a step-by-step of how to do this? I have a Gigabyte GeForce 8800 GT (GV-NX88T512HP) that I want to flash to get to work with my Mac Pro (2008). Any help would be greatly appreciated.
    Hi, coould I know did You solve this problem. I have now the same problem with my Mac Pro 2008. Could You tell a few words for helping me ?
    thanks. Felix

  3. #19
    Laird Of The Glen jimborae's Avatar
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    • jimborae's system
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    Re: Mac Pro - 8800GT Upgrade / Bios Flash Mod

    Holy Thread Revival !!

    In other related news today I just successfully flashed the bios on a Gigabyte HD7970 to mac EFI firmware and have slung it in my Mac Pro 2009. All works fine and now I'm able to extend the life of this Mac Pro for probably another 5 years as now I can install the Mojave Beta OS on it as this card is Metal compatible. Not bad for £79, although with this bios on it I've probably double the value of the card as well.

    Winner, winner, chicken dinner.

  4. Received thanks from:

    peterb (13-09-2018)

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