MP 1,1-5,1 Mac Pro 5,1 with GT 120 and RX 580 Mojave?

kimherrmann

macrumors newbie
Original poster
Mar 2, 2019
5
0
I've been reading up a lot on all kind of possibilites running Mojave with the Mac Pro 5,1 and i even have it runing without too much hassle to be honest.

Now i want to run Windows 10 on a second internal drive and i'm going nuts for two reasons. nr.1, my SSD is on the PCIe and is not sees as internal (so bootcamp disallows me to install Windwos 10). Secondly and even more anoying... I have no bootscreen with my RX 580, so booting from the right drive is a problem.

To solve this problem i've bought myself an old GT 120 and kind of hoped that it would run nicely along side the RX 580. While booting up it works, i see the bootscreen and i can start Mojave... Start... I'll never got the chance to login so it's stuck. Removing the card brings me back to the login screen.

So now i was wondering and mybe somebody already did this (if possible). I would like to install High Sierra with both cards available in the machine. Seeing the bootscreen etc etc. Now i would like to disable the GT 120 from OSX High Sierra so it's no longer 'available'. Than i would like to upgrade to Mojave. Is there a solution for this in place so i could see the boot screen on the old card but the old card won't be loaded in Mojave so that it won't get stuck starting up?

Any other solutions for the boot solutions would be great. Maybe even a way to select a boot method from OSX before booting and only doing that once?
 

startergo

macrumors 65816
Sep 20, 2018
1,129
418
It is not clear what you want to do:
Install HS, Mojave or Windows?
Please clarify .
 

kimherrmann

macrumors newbie
Original poster
Mar 2, 2019
5
0
It is not clear what you want to do:
Install HS, Mojave or Windows?
Please clarify .
Ah okay, maybe i was unclear. There are two things i like to do.
1. Run Mojave on Mac Pro 5,1 with both video cards in the machine (GT 120 and RX 580)
2. Install windows with or without bootcamp, but current issue is no bootscreen (without the GT 120).

So first wish is being able to Run Mojave with both Video Cards installed. In boot see the bootscreen on the GT 120 and than login Mojave with the RX 580 and not have the GT 120 seen by Mojave (as it currently doens;t want to show Mojave with the GT 120 installed)
 

tsialex

macrumors 603
Jun 13, 2016
5,310
6,027
Brazil
So now i was wondering and mybe somebody already did this (if possible). I would like to install High Sierra with both cards available in the machine. Seeing the bootscreen etc etc. Now i would like to disable the GT 120 from OSX High Sierra so it's no longer 'available'. Than i would like to upgrade to Mojave.
Mojave can't work with AMD and NVIDIA GPUs simultaneously. Since Mojave, GT120 becomes relegated to diagnostic.

If your SSD is NVMe, Windows can't be installed into NVMe drives with a Mac Pro. You have to use a drive connected into a SATA south bridge port.
 

kimherrmann

macrumors newbie
Original poster
Mar 2, 2019
5
0
Mojave can't work with AMD and NVIDIA GPUs simultaneously. Since Mojave, GT120 becomes relegated to diagnostic.
Hi tsialex, i noticed that just this morning... It boots but than stops... I was wondering if there is a way to disable the GT 120 drivers somehow so it won't use the card but is able to boot into OSX
 

tsialex

macrumors 603
Jun 13, 2016
5,310
6,027
Brazil
Hi tsialex, i noticed that just this morning... It boots but than stops... I was wondering if there is a way to disable the GT 120 drivers somehow so it won't use the card but is able to boot into OSX
No one found a way, may be impossible. There are lots of thread about this, use the search, no one found a way to have pre-boot configuration/bootscreens with a Mojave unsupported GPU plus a supported one.
 

startergo

macrumors 65816
Sep 20, 2018
1,129
418
Ah okay, maybe i was unclear. There are two things i like to do.
1. Run Mojave on Mac Pro 5,1 with both video cards in the machine (GT 120 and RX 580)
2. Install windows with or without bootcamp, but current issue is no bootscreen (without the GT 120).

So first wish is being able to Run Mojave with both Video Cards installed. In boot see the bootscreen on the GT 120 and than login Mojave with the RX 580 and not have the GT 120 seen by Mojave (as it currently doens;t want to show Mojave with the GT 120 installed)
Aah ok. I am not very optimistic about Mojave and GT-120 but take a look at this post:
https://forums.macrumors.com/threads/nvidia-gt-120-running-mojave.2164967/
As far as instaling Windows and running GT-120 with RX-580 it is possible and I have done it although it is not recommended.
You can try installing the Bootcamp Windows to an internal drive and image-copy it to the external drive and see if it will boot. In fact this is one of my pending projects I just don't have time at the moment.
What I have done is install windows in EFI mode by booting the USB installer and installing Windows on the only drive in the Mac (I have removed every other drive because Windows EFI tends to overwrite the other EFI partitions).
One thing to remember is that you cannot run both AMD and NVIDIA drivers at the same time on Windows machines therefore you have to use the Microsoft basic display adapter for the GT-120.
 

kimherrmann

macrumors newbie
Original poster
Mar 2, 2019
5
0
Thanks for all your reactions... Although a kind of desolate right now... First
Mojave can't work with AMD and NVIDIA GPUs simultaneously. Since Mojave, GT120 becomes relegated to diagnostic.

If your SSD is NVMe, Windows can't be installed into NVMe drives with a Mac Pro. You have to use a drive connected into a SATA south bridge port.
I know that, i currently have a normal SSD on the PCIe bus. However Bootcamp states that because the drive is 'external' (not on sata) it can;t install windows. So i could probably put the ssd on the sata and than try it, but wondered if there is a faster way to do that.

Not quite sure, but if i install bootcamp and windows, than install boot runner, i should overcome the bootscreen issue probably
 

tsialex

macrumors 603
Jun 13, 2016
5,310
6,027
Brazil
Thanks for all your reactions... Although a kind of desolate right now... First


I know that, i currently have a normal SSD on the PCIe bus. However Bootcamp states that because the drive is 'external' (not on sata) it can;t install windows. So i could probably put the ssd on the sata and than try it, but wondered if there is a faster way to do that.

Not quite sure, but if i install bootcamp and windows, than install boot runner, i should overcome the bootscreen issue probably
Do this https://forums.macrumors.com/thread...ut-a-boot-screen.2114788/page-9#post-26689280
 

startergo

macrumors 65816
Sep 20, 2018
1,129
418
Thanks for all your reactions... Although a kind of desolate right now... First


I know that, i currently have a normal SSD on the PCIe bus. However Bootcamp states that because the drive is 'external' (not on sata) it can;t install windows. So i could probably put the ssd on the sata and than try it, but wondered if there is a faster way to do that.

Not quite sure, but if i install bootcamp and windows, than install boot runner, i should overcome the bootscreen issue probably
Actually there is a way to install Windows Bootcamp on an external drive in fact the Bootcamp startup disk appears from the external drive and boots. I think @h9826790 you can add that to the sticky guide.
 

kimherrmann

macrumors newbie
Original poster
Mar 2, 2019
5
0
Actually there is a way to install Windows Bootcamp on an external drive in fact the Bootcamp startup disk appears from the external drive and boots. I think @h9826790 you can add that to the sticky guide.
Thanks, i'll read into it
[doublepost=1551558799][/doublepost]
Thank you, i will ready into it. Personally i would rather see OSX see the SSD as an internal but we can't have it all
[doublepost=1551559327][/doublepost]I've seen another solution to the Windows 10 install without EFI GPU. It looks reasonably easy. The fun thing is i will be installing Windows 10 on a internal drive (bay 1), but my OSX boots from the PCIe SSD. But because of that bootcamp already stopped installing.

This might be nice to use:
 

macguru9999

macrumors regular
Aug 9, 2006
150
49
I have Windows 10 and Mac OS on a dual boot setup.... Take out your rx580 and ssd and put in a card with a bootscreen and a couple of spare sata drives in the bays. Install sierra on one and boot camp the second , i did windows 7 64bit first, with drivers and registered it then updated to windows 10. If you use a card like the nvidia 680gtx, you will be able to boot between either disk using the startup screen. Now , put the ssd blade with mojave back in and you will be able to select between the two , i mean 3 systems at startup (the 120 card is obviously no good for mojave). BUT if you put the radeon rx580 back in instead , you will have to select the windows drive in the prefs after startup, AND when you boot into windows and go to the bootcamp control panel, you will NOT see the SSD, just the sierra drive you put in one of the bays, because the bootcamp boot manager cp does not see APFS volumes.... So you will need to leave the sierra boot drive in as an intermediary. simple.
 

macguru9999

macrumors regular
Aug 9, 2006
150
49

orph

macrumors 68000
Dec 12, 2005
1,852
380
UK
if you want a simple life
instal win10 on a SSD
instal osx on to a SSD
use the RX 580
keep the GT 120 as a backup in a box
use something like bootchamp to boot in to windows.