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MP 1,1-5,1 Mojave wont boot with original Nvidia GT120 in Mac Pro 4,1 flashed to 5,1 WHY?

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Original poster
Aug 20, 2007
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Other guys have this card in a slot in their Mac Pro's with Mojave and the machine boots and they can even have a display connected to the GT120, although it ain't performant.

So why, can't my machine boot up with this card in a slot with?

I don't want to use it for Mojave because I have a MSI Radeon RX 580 with 3 displays connected to it.

But I do need a bootscreen and having the Nvidia GT120 installed should allow me to have a cable connected to it, so when I DO need a bootscreen, I simply change the display's input to that on the Nvidia GT120 and fire it up.

No matter what slot this card is installed in, with the Radeon card also installed, it refuses to boot.

I have pull the GT120 card for the machine to boot.

Machine will even boot to Mojave installer if the Radeon is not installed.

I read other threads and dude do have also this GT120 installed and their machine boots.
 
You can't boot Mojave with these two cards installed together. Either GT120 or RX580, but not together. It's been like this since day 1.
 
You sure absolutely swaer about this? Cos im certain ai read many posts with dudes who have the GT120 installed with some other cards...I don't wanna have to cost more time looking for these again as reference so would be nice if you can say you're certain.
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Because, why? why would it not boot if it will boot with only the original card? power?
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SecuritySteve said:
I am amazed the GT120 works under Mojave for booting as it is not a Metal capable graphics card.
Click to expand...
It absolutely does, I read all about this before I tried and yes it boots then the installer after clicking a few things says sorry need a compatible card.

But as i mentioned, dudes pulled the card, installed Mojave without it then once installed put the card back in and machine booted even with a display connected to it...so the guys was saying cant have the card in for installation but Mojave will run after it's been installed.
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Otherwise, I wouldn't be posting asking this if i didn't read these other threads.
 
drayon said:
You sure absolutely swaer about this? Cos im certain ai read many posts with dudes who have the GT120 installed with some other cards
Click to expand...

"Other cards" may be, but not RX580.

And I am 100% sure.

Anyway, I really don't know any situation that you must install these two cards together to boot Mojave.

If you need boot screen, that means you need something can display before you start to boot Mojave.

If you boot Mojave, then the RX580 can display, no need boot screen.
 
The issue is I need bootscreen, I need to boot single user mode, I need to boot to recovery, I need the bootpicker to get into other OS's. You realise how god damned slow this thing is to boot??

MY gosh my hackintosh on PC hardware with same SSD's boots to macOS in 5 seconds, this Mac Pro takes 20 seconds to hear the chime and over 1 minute to get to the desktop. With all my PCI cards it takes what feels like 5 minutes to get to desktop.

I been using a hackintosh because the Mac Pro is ancient, super slow and there's no solution to get a video card with Mac ROM for a bootscreen. While on the hackintosh I been using Mojave for a long time and this OS is a PITA trying to get workable on the Mac Pro. We need Mac ROM's for current Radeon cards and we could get by. A current PC card cost $150, I certainly am not buying a 6 year old Mac Radeon for $600.
 
When you need single user mode, you don't need RX580.

When you need to boot recovery, you don't need GT120.

I don't know why you want to use that boot picker, but you can just install the GT120 and use it (when you really need it)

The point is, you don't need all the above at the same time.

How often you need single user mode? How often you must you that boot picker?

If not frequently, then you only need GT120 very occasionally, and you can swap GPU on the day that you really need it.
 
drayon said:
The issue is I need bootscreen, I need to boot single user mode, I need to boot to recovery, I need the bootpicker to get into other OS's. You realise how god damned slow this thing is to boot??

MY gosh my hackintosh on PC hardware with same SSD's boots to macOS in 5 seconds, this Mac Pro takes 20 seconds to hear the chime and over 1 minute to get to the desktop. With all my PCI cards it takes what feels like 5 minutes to get to desktop.

I been using a hackintosh because the Mac Pro is ancient, super slow and there's no solution to get a video card with Mac ROM for a bootscreen. While on the hackintosh I been using Mojave for a long time and this OS is a PITA trying to get workable on the Mac Pro. We need Mac ROM's for current Radeon cards and we could get by. A current PC card cost $150, I certainly am not buying a 6 year old Mac Radeon for $600.
Click to expand...
Sounds like you'll be in the market for a discounted 7,1 when they become available.
 
Unlikely, in this life time, those things start at 10k here in Australia, total over kill.

If they cut that thing in half (size and weight), with 4 x PCI, on an AMD Desktop platform with user installable/upgradable Ryzen CPU, RAM, NVME PCI storage slots etc for about 3-4K AUD then we have a realistic option.
 
Ah yes, you poor Australians. I have read it is cheaper to buy a ticket to fly to LA, buy expensive software, and then fly back to Australia then it is to buy the software in Australia.

My condolences.
 
ahaha, until you arrive at Australian Customs and they confiscate it because you didn't pay Australian GST on it.
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