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Hello. I tried making a 7870 ROM with the EFI section, but I was unable to get it 100% working.

I have an MSI 7870 and MP5,1 running Mojave.

Here is how I flashed:

1. Booted the 7870 in a PC motherboard.
2. Booted into FreeDOS.
3. Grabbed the ROM with atiflash in FreeDOS.
4. Transferred it back to my MacBook Pro.
5. Patched it like the directions state on the first page.
6. Transferred it back to the machine running FreeDOS.
7. Flashed the new ROM.
8. Attempted boot in the MP5,1.

I noticed that before and after patching, I did not see a difference in device ID or size, but I'd get boot screens, a black screen, and thats it. The Mac Pro was accessible from screensharing, and reported an "unknown display". I'm just driving a single 30" Cinema display over DVI at 2560x1600.

Does anyone have any suggestions?

Attached is screenshots of System Profiler.

Greeting,

I am trying to use the Firmware tool, i have downloaded it several time, but do not know if i am going to have trouble with the update as every time i launch the app, i receive the "The Application Mac Pro 2006 2007 Firmware Tool Quit Unexpectedly" Error. Mac OS X version 10.5.8.

Anyone else have this issue or know of a solution?

Any chance of doing the firmware update by restoring the EFI Partition of the 1,1 machine with a Partition image of the  EFI Partition from a machine that has already been updated to 2,1?

Hi,

I have an old Apple Cinema Display that I would like to hook up to my GTX 770 (macvidcards).
I don't know which output port I should use to convert to mini display port.

Would this adaptor works?

https://th.rs-online.com/web/p/products/1765710/

Just have to say, nvidia's drivers on multiple displays are absolute crap. I'm one of those users who had a single display until this week and I must say, the code is spagetti and a disaster on macOS

1. Toggling 2nd display on or off has a chance to make both displays perma black/standby and be unusuable until hard reboot
2. Any of displays going into standby mode have a chance to get perma stuck that way until hard reboot.

As long as 2nd display remains off no issues.

Display one is hooked up to 1080ti Display Port. Display 2 is hooked up to 1080ti DVI (yes same card, single card configuration).

I don't know if driver just sucks balls at managing a DP and DVI at same time instead of dual DP, or what the problem is. All I know is when I google the problem it seems universal to windows and mac and ONLY on nvidia drivers.

It's a real shame nvidia makes best hardware but their drivers have been such a buggy disgrace for years now. Meanwhile AMD drivers probably more reliable but their cards are crap (their radeon 7 is an utter disgrace. A grossly overclocked vega that's STILL 8% slower than a STOCK 1080ti. an overclocked one? or a 2080ti, forget it, all while needing 50 more watts of power and able to heat a small village)

I want to find a working 2 display configuration but I don't want to do it with an inferior GPU that's going to turn my room into a loud sauna.

Thanks!

I’ll order it ASAP

Recently installed Mojave in my Mac pro 5.1 tower GPU is a GTX 460. I have several drives with earlier versions of OSX El Cap, Mavericks etc. According the many different things I have read you cannot have two video cards installed while running Mojave. Along with the GTX 640 I also have a GT120 in the tower which is not tethered to any monitor. When I boot into EL Capitan and later on boot to Mojave the dock vanishes along with all the icons for the internal drives. Selected View options does nothing as the drive options are checked off. The entire desk top appears darker and more pixelated. I found that rebooting and zapping the PRAM fixes theses issues until a boot into an earlier OS. Is this a viable work around zapping the PRAM every time I boot into Mojave or could this create more problems down the road. Needless to say I would like to keep the GT120 in the tower in case I need recover a drive etc. Any insights here

Admittedly I am a relative newbie when it comes to flashing, that being said I am finding it rather difficult finding a GTX 680 for a decent price. I did find a GTX 670 and was wondering how different the board design is. Can the 670 be flashed with a GTX 680 rom???

Yes, it's the best option.

Drivers are inside macOS Mojave so it will be always supported.

PSU will handle this GPU without any problems.