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iM 4,1-14,4 EnableGop: Pre-OpenCore GOP support for EFI-era iMacs and Mac Pros
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Read page 38, these questions were answered in detail.
Thanks! 👍
Then I will revert to my GTX680 since the GTx780 didn’t work with the enable GOP.
Good to have the boot screen because with old systems like sierra the newer systems, or anything on a PCIE SSD will not show in the bootcamp assistant or the startup disc configuration of older OSX.
Huge problem when one wants to swap between
Hi guys
@Macschrauber @h9826790
I get this when I try to dump the rom with macschrauber romdump...
Any advice?
My SIP is disabled and user root is active as well on my mac. I'm the admin of course...
The user this App is running has no administrative permissions. So cannot dump nor flash.
we got that sorted. @vworks had somehow managed to get a user name with a space character in. I dont knew that this is even possible. So that needs quoting, what I added for the next release.
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Happy to report I flashed my ROM and enabled GOP support (on mac pro 4.1->5.1)
No glitches, bootscreen on GTX770 EVGA.
A big thank you to you all!!
Especially to macschrauber : Danke sehr!!
No glitches, bootscreen on GTX770 EVGA.
A big thank you to you all!!
Especially to macschrauber : Danke sehr
!!Will this work with GTX 680 2gb, heres what I see testing my flashed rom. But still no boot picker :-(
Mac Pro 2009 (MP4,1)
-> This is a never booted rebuilt firmware <-
Firmware 144.0.0.0.0 (latest) built on Fri Apr 12 12:43:00 2019
(U)efi version: 1.10
MP41, serial from firmware:
MP41 backplane made in 2009
EnableGop 1.4 EFI module identified
CRC32 checksums: ok
Bootblock of 144.0.0.0.0 (rebuilt firmware)
Base_21 hardware descriptor, Fsys 0x0d
Fsys: 0 overrides, 1 override-version, 2 ssn, 3 hwc, 4 son, 5 EOF (ok)
65448 bytes free space of 65464
Note: Don't post or publish your serial number
Mac Pro 2009 (MP4,1)
-> This is a never booted rebuilt firmware <-
Firmware 144.0.0.0.0 (latest) built on Fri Apr 12 12:43:00 2019
(U)efi version: 1.10
MP41, serial from firmware:
MP41 backplane made in 2009
EnableGop 1.4 EFI module identified
CRC32 checksums: ok
Bootblock of 144.0.0.0.0 (rebuilt firmware)
Base_21 hardware descriptor, Fsys 0x0d
Fsys: 0 overrides, 1 override-version, 2 ssn, 3 hwc, 4 son, 5 EOF (ok)
65448 bytes free space of 65464
Note: Don't post or publish your serial number
NVIDIA GT 680 is not a UEFI GOP GPU, simply too old.
You can manually try adding GOP to it, see WinRaid thread, but is easier to just flash it with MacEFI from eVGA GTX 680 Mac Edition.
It will display the boot screen, and faster, if GOP is in the mac firmware. @tsialex can make a ROM recosntruction for you.
Maybe you can update the GOP of your card:
AMD and Nvidia GOP update (No requests, DIY)
I’m not really the guy to run on unlimited supply of patience, so this will be more a mix of tutorial, tool to do the job for you, assistance (“as long as you don’t insist with unlimited/unrelated questions” kind) and ABSOLUTELY NO GUARANTEES. Users should read this again, I am not offering any...
winraid.level1techs.com
As a role of thumb: if OpenCore presents a boot screen in standard settings, EnableGop in Mac firmware should do.
On a GTX680 in reference design (similar to EVGA GTX680 Mac Edition) you can flash that bios to get a boot screen the classic way: https://forums.macrumors.com/threads/confirmed-and-possible-flashable-gtx-680-models.1578255/
For GTX 6XX nVidia cards there's an UEFI GOP Update application from Inno3D which works very easily.
This, I guess: https://winraid.level1techs.com/t/kepler-uefi-updater/30574 - Can anyone confirm whether this is (or isn't) legit? It looks like it probably is ... but ...
at least the bios uefi part seems valid...
and a list of GTX GPUs is also to find:
Code:
$ strings nvuefiupdate.exe | grep -i gtx
GK107-GTX
GeForce GTX 660M
GeForce GTX 650
GeForce GTX 650 Ti
GeForce GTX 680MX
GeForce GTX 675MX
GeForce GTX 670MX
GeForce GTX 680M
N14E-GTX
GeForce GTX 670
GeForce GTX 690
GeForce GTX 660
GeForce GTX 660 Ti
GeForce GTX 680
GeForce GTX 560M
GeForce GTX 550 Ti
GeForce GTX 460M
GeForce GTX 670M
GeForce GTX 675M
GeForce GTX 580M
GeForce GTX 570M
GeForce GTX 560 SE
GeForce GTX 555
GeForce GTX 460 v2
GeForce GTX 460 SE v2
GeForce GTX 485M
GeForce GTX 470M
GeForce GTX 460 SE
GeForce GTX 460
GeForce GTX 560
GeForce GTX 590
GeForce GTX 560 Ti
GeForce GTX 570
GeForce GTX 580
GeForce GTX 470
GeForce GTX 480M
GeForce GTX 465
GeForce GTX 480
GeForce GTX 275
GeForce GTX 285
GeForce GTX 260
GeForce GTX 280
GeForce GTX 295
GeForce GTX 260M
GeForce 9800 GTX+
GeForce 9800 GTX/9800 GTX+
GeForce GTX 285M
GeForce 8800M GTX
GeForce GTX 280M
GeForce 9800M GTX
GeForce 8800 GTX
GeForce Go 7950 GTX
GeForce 7900 GTX
GeForce Go 7800 GTX
GeForce 7800 GTX
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Just flashed a GOP enabled 5,1 firmware (Thanks tsialex) and now have bootscreen. One thing I've noticed is brief random pink/purple junk on the screen and a black bar mid-boot. I thought I read somewhere that this was the driver doing some test and writing directly to the frame buffer, but I can't find the thread where I was reading about this.
Is it anything to be concerned about? I vaguely recall the same thing happening with an MVC flashed card in the past (I am NOT using an MVC card now or again in the future.)
I can now see what the heck I am doing on my RX580!
Is it anything to be concerned about? I vaguely recall the same thing happening with an MVC flashed card in the past (I am NOT using an MVC card now or again in the future.)
I can now see what the heck I am doing on my RX580!
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Even with Mac EFI flashed GPUs, and even sometimes with original Graphics, like in MacBook etc, we see this artefacts with GPUs when the driver kicks in. Sometime you will get a blackscreen, when driver loads, guess to hide these artefacts.
Hey guys, I see this awesome step-by-step by @h9826790, but it is over a year old and some of the downloadable tools look like older versions. Should we get current versions of the tools or stick with what is specified in the post?
Thanks!
Thanks!
I think, I can say that
the Dumper https://github.com/Macschrauber/Macschrauber-s-Rom-Dump
and
DosDudes DXEInject DXEInject.zip
is what one can use, to do the Mac Pro firmware.
The first version came in 2020, with a hidden flash option what I, and some guys in the same boat, tested about a year, before making it available.
We flashed hundreds of firmwares with it, before making it available.
...tho I respect what DosDude did, back in the day, with RomTool. This was the first GUI for RomTool we had. But it was a very basic GUI, sometimes even does not return user information when the Mac is not in firmware programming mode (FLOCKDN=0), and someone tries to flash.
This was the reason, I began to write my own GUI for Flashrom, and it escalated ;-)
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Thank you -- both for the info and for your amazing tool! Before you replied, I worked through the steps to add EnableGOP to my MP5,1, and when I got to the flashing stage I saw that Rom Dump could do it, so I just did it there, instead of using ROMTool. Everything worked great, and for the first time in years my old Mac Pro has a boot screen.
Next step: Install some new hardware and then try to install OCLP. 😅
I have Sonoma last version installed in on of my Mac Pros 5,1. With updated Wifi/bluetooth module, pcie USB 3,1, ESATA, Nvme and Thuinderbolt. It´s still a very nice machine.Thank you -- both for the info and for your amazing tool! Before you replied, I worked through the steps to add EnableGOP to my MP5,1, and when I got to the flashing stage I saw that Rom Dump could do it, so I just did it there, instead of using ROMTool. Everything worked great, and for the first time in years my old Mac Pro has a boot screen.
Next step: Install some new hardware and then try to install OCLP. 😅
That's great to hear! I've been researching this whole process, and feel a little scared to attempt anything higher than Monterey due to the AVX2 issues. I guess it depends what software you run, but I'm glad it's working for you.
Monterey running in the other Mac Pro, same hardware. I will keep it, even when it´s out of support, as no patches are needed.
About to install EnableGop and was watching a how to video by MacSoundSolutions "One More thing" youtube video.
He said check what mode one's RX580 is in, if it is a duel memory RX580. Mine is a duel memory, a Sapphire RX580 8 GB, but I have never fiddled with its two memories (which the box said it had).
Should I worry or just go ahead? Evidently its needs to be in "high power mode" and something else as well ...
He said check what mode one's RX580 is in, if it is a duel memory RX580. Mine is a duel memory, a Sapphire RX580 8 GB, but I have never fiddled with its two memories (which the box said it had).
Should I worry or just go ahead? Evidently its needs to be in "high power mode" and something else as well ...
The dual bios gives you a safety net.
So my first choice - which I and many here did - was to add EnableGoP to my cMP5,1 bootrom. This enables the Apple Boot Manager for most PC compatible GPUs.
If you still want to add it to your RX580 instead then I would flip the small switch on the back of the card (computer powered down of course), start your computer and make sure you can boot with the secondary VBIOS, and then patch that VBIOS. If something goes wrong then you simply flip the switch back and you are still able to use your RX580.
Thanks.
I have no intention of changing the card's BIOS. EnableGOP effectively provides what is needed anyway, and leaves the door open to changing the GPU (most of them) without a headache. The 5770 GPU is really no longer a safety item now.
I may look at the card and check if its starts though after finding the switch. My understanding though was that to change the card BIOS, I'd need two cards in the machine and to do so under Windows. No need for that with EnableGOP but I was unsure if my RX580 was operating in its full capacity. I presume it always has been.
I'm going to flash a new ROM provided by tsialex tsialex which includes the latest EnableGOP.
I can't use Macschrauber's dump tool though, as when I try to unzip it, a password windows pops up and a password is requested, and I cannot find out how to get one.
Cheers
MP
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Will remove all my drives etc and then make a duplicate of my current drive (Mojave) and will use Superduper to do that. I think I'll put the drive into the DVD connection to start with. Then I'll copy that drive to a 1TB one, and put it on a shelf. I don't know which OSs are on which drives at the moment. Will be fun finding out. Some software I lost with Mojave will be useful.
First google hit:
It is all written:
Use my Github Downloader to obtain a copy with no quarantine flag set:
You may need to right-click on the App and select open.
The password is rom. The problem is that included Flashrom and sometimes DirectHW.kext triggers malware protection. This is the reason I (and before, Dosdude) needed to encrypt the tool, to get it over.