Mac Pro 5.1 and Mojave

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Level 2

385 points

Mac Pro 5.1 and Mojave

I have all but given up on installing Mojave on my Mac Pro 5.1.

It appears to install but hangs and dosen't restart. A forced shut down leads to a black screen, Alt gets me to the Boot Disc selection screen and I can see 10.13.6 on one disk and Mojave on the other.

Both discs show on the desk top and I can even look through the folders etc on the Mojave disk.

So far I have tried -

Upgrading from 10.13

Upgrading from 10.13.6

A complete fresh install of 10.13.6 and upgrading

Erase disc and direct install of 10.14

All with the same result. I have even tried turning of SIP. (csrutil disable) but nothing seems to leave me with a bootable copy of Mojave.

Any ideas would be welcomed.

Posted on Oct 5, 2018 11:58 AM

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Answer 1

Oct 5, 2018 12:03 PM in response to Paul Simpson

Have you upgraded the graphic card to one that is Metal 2 compatible?

Mojave requires that the graphics card be one that can do Metal 2 processing.

I have the same problem. I am now trying to make up my mind if I want to upgrade the GPU or just upgrade the Mac instead. I leaning towards the later.

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Answer 2

Paul Simpson Author

Level 2

385 points

Oct 9, 2018 2:58 PM in response to Allan Eckert

Sorry, maybe I wasn't clear.

I already have a GTX 680 installed, a genuine Apple one that it came with but I still have this problem.

It says Supported, Mac OS Family V1.3. Does it need to be V2? In which case why do they state that its supported?

[Image Edited by Host to Remove Personal Information]

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Answer 3

Paul Simpson Author

Level 2

385 points

Oct 11, 2018 11:59 AM in response to Paul Simpson

OK, I seem to have solved this problem.

The GTX 680 Mac Edition in my system is indeed Metal / Mojave compatible, and Mojave was actually

running I just couldn't see it!

It seems that either the boot rom upgrade or Mojave its self does not like VGA output. I can run in

High Sierra using the same card on VGA with no problem but to use Mojave I have to use a DVI - DVI D cable.

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Answer 4

Paul Simpson Author

Level 2

385 points

Oct 5, 2018 12:13 PM in response to Allan Eckert

So the GTX680 is no good? It says it supports Metal 1.3 I'm guessing thats not enough.

What other GFX card options are there? I thought the 680 was the last genuine Apple specific card they did.

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Answer 5

Oct 5, 2018 12:16 PM in response to Paul Simpson

The GTX680 is list as be compatible with Mojave at https://www.macrumors.com/2018/09/24/mojave-2010-2012-mac-pro-metal-graphics-car ds/

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Mac Pro 5.1 and Mojave

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