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MP 1,1-5,1 MacPro5,1: BootROM thread | 144.0.0.0.0
- Thread starter tsialex
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Hi!
Sure.
Ok! PM sent with instructions/files required/service fee/turnaround time.
As I posted, @tsialex did an amazing job with my two Mac Pro 5,1's!! New BootRom's with Enable GOP injected and I installed NVIDIA GTX-680's in both with Monterey. I also have them setup with XVF AMD Radeon RX-580's with OC Sonoma OS's if I would like. Of course I have to remove one of my drives and install the RX-580 GPU and a OC Sonoma OS and all is working fine!
Hello Alex,
I have a Mac Pro 5,1 and have just replaced the logic board. The new bootrom has issues (microsoft certificate) and of course does not match the computer. I have images of both bootroms and photos of the MLB (for both boards) and ESN. I also want to enableGOP.
Can I engage your services?
I have a Mac Pro 5,1 and have just replaced the logic board. The new bootrom has issues (microsoft certificate) and of course does not match the computer. I have images of both bootroms and photos of the MLB (for both boards) and ESN. I also want to enableGOP.
Can I engage your services?
Sure, I'll match the replacement backplane to the ESN label, repair, fully upgrade it and add EnableGopv1_4.
PM sent with instructions/files required/service fee/turnaround time.
Wow, the replacement backplane BootROM image is in really bad shape:
- 2nd VSS store header completely corrupted,
- KPs/crash logs stored,
- Windows UEFI installed SecureBoot signing
- just 15395 bytes available right after a garbage collection run
This will be a brick soon if you don't repair it right now, worse still booting BootROM image that I saw in 2025.
Based on what I have read on various threads there is no way to update an old Bootblock like MP51.007F.B03 even with firmware update 144* tool. What are the advantages of updating the bootblock? Is having the bootrom rebuilt the only way to update the Bootblock?
Correct.
Btw is not just the BootBlock that was flashed by the factory and never updated again - at least until you flash a reconstructed BootROM image - but also the NVRAM volume Fsys/Gaid stores.
The Fsys store a particulary important one to have the most recent version since the hadware descriptor controls all input/output ports and configure each one of the sensors of the Mac Pro. Only the mid-2012s and some very late mid-2010s have the most recent Base_21 hardware descriptor.
The early-2009 Mac Pro start with Base_16 and go all the way to Base_20, while mid-2010s most have Base_20.
All the versions before 144.0.0.0.0 have a gigantic bug that when you have a PCIe switched card installed, you have black screen at some cold POST. This affects some people worse, like one at every four boots. @crjackson2134 bugged Apple bugtrack for months until they finally solved it.
There are also other minor issues, like some OPROMs failing to be loaded and etc, this was discussed in detail early in this thread.
Please PM me the instructions/files required/service fee/turnaround time for BootRom reconstruction to get everything up to date with all the fixes for 144. I don’t need EnableGop, I’m interested in getting everything updated and fixed before doing any mods like EnableGop or OCLP boot.
Done!
I always send one never booted reconstructed BootROM image that was fully repaired, cleaned and upgraded, the standard one, and another one identical, but with EnableGopv1_4 EFI module already injected.