MP 1,1-5,1 Does PowerColor HD 7750 2GB DDR3 work in Mac Pro 2012?

[superjill]

Hi everyone
Just as the title
Does PowerColor HD 7750 2GB DDR3 work in Mac Pro 2012?

PowerColor HD 7750 2 GB DDR3 Specs

AMD Cape Verde, 800 MHz, 512 Cores, 32 TMUs, 16 ROPs, 2048 MB DDR3, 800 MHz, 128 bit

www.techpowerup.com

I wanna put my old working HD 7750 2GB DDR3 from PowerColor into old Mac Pro 2012, but it doesn't seem to work at all
7750 has been working in PC desktop all along, and the Mac has been working with GT 120

Screen shows nothing if I just put 7750 into the Mac even nothing by booting with OpenCore

If both of 7750 and GT 120 are into the Mac, progress bar freezes at the middle, and the screen must connect to GT 120, otherwise shows nothing if connecting to 7750

And also not any luck by flash the rom following the threads

AMD Radeon 7xxx Rom creator for Mac UEFI port mapping (+apple gray screen+mojave)

AMD Radeon 7xxx Rom creator for Mac UEFI port mapping (+apple gray screen+mojave) - README.md

gist.github.com

Guide to flash HD 7950/7970/280/280X for Mac EFI

Quoted myself from https://www.macgpu.com/how-to-flash-hd-7950-for-mac-pro.html Original post is in http://forum.netkas.org/index.php/topic,5619.0.html A GTX680 or HD 7950/7970/280/280X is still the best GPU option for old Mac Pro if you want both Metal and boot screen. (Opencore is a...

forums.macrumors.com

And I also can google lots of post about this card compatible with macOS, such as

AMD GPUs | GPU Buyers Guide

[for MacPro] AMD Radeon HD7750 1GB Mac EFI / Metal 4K対応 / 1スロット占有 / リンゴマーク出力可能｜Yahoo!フリマ（旧PayPayフリマ）

[for MacPro] AMD Radeon HD7750 1GB Mac EFI / Metal 4K対応 / 1スロット占有 / リンゴマーク出力可能 MacEFI対応 🍎 AMD Radeon HD7750 1024MB メモリ 512コア 800MHz Metal対応 4K対応 補助電源不要 貴重な Mac EFI 対応グラフィックカード MacEFI対応のRadeon HD7750です！リンゴマークとOption起動でStartupManagerを表示することが可能で、ブートディスクの切り替えが簡単にできるようになります。...

paypayfleamarket.yahoo.co.jp

AMD Radeon HD 7750: supported in macOS Mojave / Catalina / Big Sur / Monterey

Final Notes : Mac OS Ventura has dropped support for HD 7750. It has been a great run folks running mac os on this amd gpu. We have really pushed this budget gpu as far as we could! It remains my best ever budget gpu for mac os to date! Dear Members, Mac OS Catalina I am pleased again to confirm ...

osxlatitude.com

Any idea that it is possible to make it work into Mac?

Cheers

 

[tsialex]

Flashing a GPU with a macEFI is only for getting pre-boot configuration support, won't change anything with driver/kext support of macOS for this GPU. If your GPU worked with macOS with the factory firmware, you wouldn't get any BootScreens, but later after macOS loaded the kexts for the GPU, the display would work.

Apple never used a Cape Verde based GPU with any Mac, so the support for this specific GPU chip is not as good as GPUs based with HD 78xx or HD 79xx that were sold with several models of Macs back in 2013ish, only some PCIe IDs are supported by AMD7000Controller.kext.

My advice is to forget this one and get a better GPU.

 

[Borowski]

May work, but without bootscreen and only below OSX 10.10.3 (yes, it is Yosemite), because Apple changed something to the drivers and you run into the "black screen problem".

Forget bootscreen with modified Apple EFI, many IDs had to be changed in decompressed EFI bytecode.

 

[LightBulbFun]

Apple never used a Cape Verde based GPU with any Mac,

the AMD R9 M370X GPU used in the MacBookPro11,5 was a Cape Verde based GPU IIRC?

 

[tsialex]

the AMD R9 M370X GPU used in the MacBookPro11,5 was a Cape Verde based GPU IIRC?

Tropo XT, not the same PCIe ID.