MP 1,1-5,1 MP 3,1 Boot Screen required for opencore

[HeadstrongZodiac]

Hello all,

I recently upgraded my 2008 mac pro tower with an EVGA 2gb gtx 680. However, (and I knew this) it won't have a boot screen, but will still load macOS. I want to upgrade it to Monterey via opencore legacy patcher 1.3, but I'm not sure how to do it, since the base hd 2600 xt is not metal supported, and the gtx 680 has no boot screen/screen to boot from a usb, I'm unsure of what to do.

I'm sure I'll have to do some patching I'll need walked through for, but is there a roundabout way of doing it? Potentially using the 2600 xt to install Monterey and then removing it for the gtx 680? If anyone knows how to help, let me know.

Thanks to all

 

[Bigwaff]

OpenCore and the 2008 Mac Pro 3,1

At the request of @tsialex, I've created this thread to consolidate questions, issues, and solutions revolving around OpenCore and its implementation on the early 2008 Mac Pro 3,1. If you have one of these machines and are interested in installing OpenCore, or already have OpenCore running...

forums.macrumors.com

 

[tsialex]

Just flash the GTX 680, easiest card to do it.

GTX680 4GB - ROM Image - Full Boot Screens, Full Clock Rates & PCI-E 2.0 - 5GT/s

Anyone try this with a 3,1? Hey there, thanks much for all this incredible info. Checking the thread and the signatures of those posting, it looks like everyone is on a MP 4,1 or 5,1. Please forgive me if I missed it somehow, but has anyone tried this on a 2008 Mac Pro, the 3,1? Super...

forums.macrumors.com

 

[HeadstrongZodiac]

Just flash the GTX 680, easiest card to do it.

GTX680 4GB - ROM Image - Full Boot Screens, Full Clock Rates & PCI-E 2.0 - 5GT/s

Anyone try this with a 3,1? Hey there, thanks much for all this incredible info. Checking the thread and the signatures of those posting, it looks like everyone is on a MP 4,1 or 5,1. Please forgive me if I missed it somehow, but has anyone tried this on a 2008 Mac Pro, the 3,1? Super...

forums.macrumors.com

Can you link me to a video or something? I can't seem to find any actual info on how to flash the card in the thread. I found a video, but don't know if it's the best.

Video Link:

 

[tsialex]

Can you link me to a video or something? I can't seem to find any actual info on how to flash the card in the thread. I found a video, but don't know if it's the best.

Video Link:

There are step by step instructions on the post I've linked. Please read it, nothing else is needed.