The wiki provides instructions for installing Windows 10 provided that you have OpenCore. You can then install the Boot Camp software and drivers. I have found that the iMac Pro Boot Camp version 041-88815 offers the best functionality. Depending on your hardware, you may also need to install some drivers from the Mac Pro Boot Camp.
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MP 1,1-5,1 Manually Configured OpenCore on the Mac Pro
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The wiki provides instructions for installing Windows 10 provided that you have OpenCore. You can then install the Boot Camp software and drivers. I have found that the iMac Pro Boot Camp version 041-88815 offers the best functionality. Depending on your hardware, you may also need to install some drivers from the Mac Pro Boot Camp.
Hi everybody,
Thank you for all this shared work ...
I have the exact same problem as RottenCotton.
cMP 5.1, 3.33 Gh, XFX 580.
I get the same screen with weird colors. I tried several solutions: the small switch on the card in the 2 positions does not change anything. I tested “DirectGopRendering = false”, it doesn't change anything.
Please does anyone have an idea?
Everything else works without problems, hardware acceleration etc ...
Thank you !
Thank you for all this shared work ...
I have the exact same problem as RottenCotton.
cMP 5.1, 3.33 Gh, XFX 580.
I get the same screen with weird colors. I tried several solutions: the small switch on the card in the 2 positions does not change anything. I tested “DirectGopRendering = false”, it doesn't change anything.
Please does anyone have an idea?
Everything else works without problems, hardware acceleration etc ...
Thank you !
Hi There,
First off I wanted to say a Huge Thank You to the OP and everyone involved in this guide and all the magic that allowed me to Install OpenCore and get Catalina on my 5,1.
It works and from a complete techno dunce like me being able to follow along and get this done is massive.
I am running into a few small aesthetic issues that if someone has a solution to resolve it would be awesome but if not then its an aesthetic issue so ill just deal with it.
I followed the basic installation parts 1 - 5 to the letter in post #1. and I also Enabled the Graphical Boot Picker in "Part II Advanced Configuration".
When I boot up the Mac the wild and negative colours appear on boot. Much like when I first installed OpenCore. I can make out that the Graphical Boot Picker is working but those pinks and yellows and rainbow spectrum colours don't look the greatest. Once I select the Boot Drive the Black screen with the white apple logo kicks in and everything is fine from there on.
I went and repeated all the Post Install actions again (made sure the changes were correct) I even re enabled some like HiDPI Display, GOP Renderer but reboots with those reverted were still the same.
Could someone let me know if the initial boot screen is supposed to be crazy colours and if not if you have any suggestions on what the issue might be that would be awesome.
End of day though is a small aesthetic issue when I first boot up so if that's just how it is I won't complain.
Awesome Job once again
Edit: Attached are photos of the screens I see in order, Ive seen this (Apart from the Graphic Icon of the Boot Drive) on boot up ever since going to Open Core (incase that in itself is unusual). a second after the last photo in the series it goes to the black apple boot screen for a second before logging into Catalina
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Hey all,
A warning to all using the config in post #7 when updating Big Sur, make sure you sign out of your iCloud account! After seeing all the warnings on here, I had sworn everything was successfully signed out before I switched to the OC config. I am now unable to sign into iMessage or Facetime because I get an "unknown error" upon activation.
On my device page for my iCloud account it has my MacPro listed with obviously the incorrect serial number, it's now the same one matching the config in post #7. No matter how many times I hit remove, it won't delist the device from my account. When I look at my devices on the settings page on iOS, it has my MacPro listed with the proper serial. I am no longer using the config and am using just the vanilla AMD hardware acceleration config. Any suggestions on how I could get this sorted out so I can use iMessage again?
A warning to all using the config in post #7 when updating Big Sur, make sure you sign out of your iCloud account! After seeing all the warnings on here, I had sworn everything was successfully signed out before I switched to the OC config. I am now unable to sign into iMessage or Facetime because I get an "unknown error" upon activation.
On my device page for my iCloud account it has my MacPro listed with obviously the incorrect serial number, it's now the same one matching the config in post #7. No matter how many times I hit remove, it won't delist the device from my account. When I look at my devices on the settings page on iOS, it has my MacPro listed with the proper serial. I am no longer using the config and am using just the vanilla AMD hardware acceleration config. Any suggestions on how I could get this sorted out so I can use iMessage again?
Are those weird colors limited to Apple's Statup Manager boot screen and/or the OpenCore Boot Picker, or do they have an impact on your desktop? Has your XFX 580 been flashed? Several 580 users have stated that weird colors and artifacts can often appear BEFORE the Metal drivers kick in at boot time, but everything should settle once the drivers have been loaded, a few seconds before your desktop is displayed. If that's what happens, I wouldn't worry too much.
Those weird colors are limited to the OpenCore Boot Picker, but render the Graphical Boot Picker unreadable... and useless. After the drivers are loaded, everything is fine...
I really would like to understand. I bought this card used ... how do I know if it has been flashed?
Thanks !
If it doesn't have a native boot screen (showing the Apple logo and the progress bar) when you press Option (Alt) when the chime is heard, it hasn't been flashed.
EDIT: In fact, the Apple logo isn't the first thing you see on a flashed card when you press Option: You should be presented with at least one boot device, which should be some version of Mac OS X or macOS. A second device might be your Boot Camp disk or partition, and more devices would be possible (like, for instance, El Capitan and High Sierra). If you've never seen this, your card isn't flashed.
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Not necessarily. It could have been flashed with a modified firmware (for mining), which is problematic for OpenCore.
This is what I have been warning all along in respect to the spoofing MLB, serial numbers, UUID etc.
Now you may have to call Apple. I would still try to delete that computer from iCloud.
Here are troubleshooting steps:
First thing try spoofing only the board-id and nothing else!
To make sure it has the original vBios check your part number with the Techpowerup database and try flashing the latest known/approved vbios for your card.
It should be written on the back of your card (on a sticker). You will need Windows or UEFI shell.
Thank you for your help and for pointing me in the right direction. My wife's MacBook Pro is on High Sierra and Boot Camp Assistant does work on it.
Try Sign out iCloud on cMP. Shutdown, wait few minutes, then switch on the cMP and sign in again.
If doesn't work, then try the same thing, but after shutdown, perform a 3x NVRAM reset before you sign in again. [N.B. Even our default config should makes OpenCore survive after NVRAM reset. But always know your plan B in case NVRAM reset disable OpenCore].
Check out post #3,062
OpenCore on the Mac Pro
Try setting the switch on the RX580 to the non-gaming mode. It is on the top side of the card. Really tiny. Slide it away from connector end. Power down first of course.forums.macrumors.com
I might be getting ahead of myself but even if this doesn’t work you are a true rock star!
Thank you for the reply, I will be sure to try this in the AM and let you know how it went.
I actually sat down last night and started reading through all the posts in this thread got to well over 1000, talking about spoofing other Mac models, and the growing pains this solution went through, learnt a lot but nothing about my issue, so a huge thanks in advance even if that doesn’t fix it 😀
ohhh one other thing and this will further show my ignorance but if the rx580 is set to gaming mode what would I be switching it too and will that draw more power?
i never did the Pixlas mod, so I have the usual power draw from the 2 6 pin and the pcie slot, will this switch draw more / too much power?
Hey there,
Just to confirm our issues are the same:
- power on and black screen for 10 seconds
then screen shows a box that’s usually off white or light yellow, sometimes pink
- then I got boot picker screen (I think that’s the term, where I get to choose Mojave or Catalina login And the disk icons are multi coloured ..... but crazy like your staring at the pixels of an old crt television.
then the Apple logo with boot up progress bar but the Apple logo is one crazy color like hard pink on a dark blue background
- then the nice black loading screen with the white Apple logo kicks in
is that what you see?
Hi Peter,
Thanks for looking into this. If you see my reply just above #4,169 that’s what I see / experience and while I’m not 100% on the terminology that’s pretty much it.
so it looks like it’s an issue for 580 users, but as you mentioned once logged in you would never know it had happened. Zero effect!
as I said before end Of the day it’s not a big deal, but I think I have a dose of OCD or something similar as even though it’s inconsequential it still at the back of my mind festering 😛
anyway if some bright spark ever figures it out I would give them major respect and dues if they could share it here.... I just saw this community resolve a ton of bigger issues, wierd colours on boot should be a walk in the park for some of you.
ohhh and just for my reference as I learn the terminology so when in Rome. A Flashed Video Card is one that say Apple includes in their computers that has been coded/configured specifically to work with the Mac it’s installed in right?
my 580 was a brand new off the shelf gigabyte asorus rx 580 that since I installed it in my cmp has never had the boot screens so that means it’s not flashed, right?
and lastly To confirm I can’t get it flashed? I would hate to think I’ve been doing all these posts asking for help when all along the issue was because I hadn’t flashed my 580 and it was a super simple process to do it.
@RottenCotton:
I'm no true expert on this. I know that, on classic models such as the Mac Pro 5,1, the Apple native boot screen will only appear if you are using a card that has been flashed for that specific purpose. A regular PC GPU won't have a boot screen. I'm about to receive a flashed XFX RX 580 myself. Although it has been flashed and I take it for granted it will work correctly once the drivers are loaded, I assume that artifacts might probably show up at boot time (both on the Startup Manager and the OpenCore Boot Picker) when I install it. I'll let you know if such artifacts exist.
I'm no true expert on this. I know that, on classic models such as the Mac Pro 5,1, the Apple native boot screen will only appear if you are using a card that has been flashed for that specific purpose. A regular PC GPU won't have a boot screen. I'm about to receive a flashed XFX RX 580 myself. Although it has been flashed and I take it for granted it will work correctly once the drivers are loaded, I assume that artifacts might probably show up at boot time (both on the Startup Manager and the OpenCore Boot Picker) when I install it. I'll let you know if such artifacts exist.
There seems to be confusion here. The regular off the shelf AMD Metal card is supposed to show OC boot picker. Flashed AMD card will show Apple genuine boot picker and the OC boot picker.
that would be awesome 👍🏼
FWIW I took a look at my 580 and there was no physical switch To change from gaming mode (this was advice received a few posts back) there was a CD that I assume allows you to switch from gaming to Overclocking but I am not sure if it will work on a Mac and even if it does not sure I want to switch it to Overclock considering my power draw concerns.
you had mentioned a few posts back that posting the log and running in debug mode might yield some good intel that might indicate what’s happening with this acid trip boot.
I read the guide / specific forum post you linked too.... well I skimmed light read it at least does it contain all the instructions I would need to deliver that log here for folks to review?
No confusion whatsoever. I never claimed that a non-flashed GPU won't show the OC Boot Picker.
I don't know about your specific 580 GPU. Mine has a microswitch that also let you choose between two different ROMs for a PC, a supposedly faster one and a regular one, whatever that means. The people at MacVid Cards have flashed the faster one so that it will show a Mac boot screen, and left the second ROM untouched to have a regular "UEFI" boot in place, although I suppose I'll never use that (I don't even know if that UEFI boot would work on a Mac Pro). I suppose in a couple of days I'll know if weird colors are displayed early in the boot process, before the GPU drivers are loaded.