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JoshBMR

macrumors newbie
Original poster
Jun 21, 2019
10
3
Hi all,

I upgraded my Mac Pro 2009 yesterday to the 5,1 firmware but can't seem to get it to boot/install high Sierra as it says it needs a firmware update.
I've got a Radeon ATI HD 5770 1GB graphics card in there, also tried with the original GT 120 & a HD 4870.

It shows in the info specs that its running 5,1. Any advice?
 
Hi
If you only flashed the firmware 4,1> 5,1 , the firmware will be MP51.007F.B03 now.

The installation of High Sierra comes with another firmware upgrade to version MP51.0089.B00
This is normal.

For the GPUs:
-the OEM GT120 will work fine for the upgrade to HS
-afaik the HD5770 is compatible with HS too
-afaik the HD4870 is only compatible up to El Capitan or Sierra..

To be 100% failproof, I'd install the GT120 and install HS .
 
Hi
If you only flashed the firmware 4,1> 5,1 , the firmware will be MP51.007F.B03 now.

The installation of High Sierra comes with another firmware upgrade to version MP51.0089.B00
This is normal.

For the GPUs:
-the OEM GT120 will work fine for the upgrade to HS
-afaik the HD5770 is compatible with HS too
-afaik the HD4870 is only compatible up to El Capitan or Sierra..

To be 100% failproof, I'd install the GT120 and install HS .

Ahh ok, so how would i go around upgrading to MP51.0089.B00?
 
Ah ok :)

I suppose you got the High Sierra installer as a usb installer or downloaded in the Apps folder on a existing OS e.g. El Capitan ?

If so, just start the installer and let it do the work;)

EDIT: With the GT120 installed, no other GPUs
 
Last edited:
Did you shut it down and afterwards keep the power button pressed until the light flashes/you hear a long tone?
 
Ok...

could you post a list of all hardware installed?

Try a triple NVRAM reset:

power it on and immediately keep pressed Command + Option + P + R until you hear the chime for the 4th time.
 
Ok...

could you post a list of all hardware installed?

Try a triple NVRAM reset:

power it on and immediately keep pressed Command + Option + P + R until you hear the chime for the 4th time.

I guess it was just having a funny moment, just tried it again unplugged the power and held the power button and it FINALLY worked
 
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