MacNB

New member
Joined
Oct 31, 2022
Messages
6
Motherboard
Dell GM3303 (Inspiron 530)
CPU
Xeon E5450
Graphics
Sapphire HD7770 1GB GHz Edition
OS X/macOS
10.13.x
Bootloader
  1. Clover (Legacy)
  2. OpenCore
Mac
  1. iMac Pro
  2. Mac Pro
  3. MacBook Pro
Mobile Phone
  1. iOS
Can you update the profile correctly? The profile should contain the current hardware specs which you're seeking support for.

Also, for the display, what connection are you using?

My Profile had included all the Hacks that I have but just changed it to my Hack 2 in my Signature.
My Signature contains some more detailed specifics.

The Sapphire HD7770 has 4 ports: 2x Mini-DP, HDMI and DVI-D.
I am using Mini-DP to DP cable to a Dell 4K monitor (S2721QS).
I have tried all different connectors and makes no difference.
 
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EliteMacx86

Administrator
Staff member
Joined
Jul 22, 2018
Messages
4,147
Motherboard
Supermicro X11SPA-T
CPU
Intel Xeon W-3275 28 Core
Graphics
2xAMD RX 580 8GB
OS X/macOS
11.0.x
Bootloader
  1. OpenCore
Mac
  1. Mac mini
  2. MacBook Pro
Mobile Phone
  1. Android
  2. iOS
My Profile had included all the Hacks that I have but just changed it to my Hack 2 in my Signature.
My Signature contains some more detailed specifics.

The Sapphire HD7770 has 4 ports: 2x Mini-DP, HDMI and DVI-D.
I am using Mini-DP to DP cable to a Dell 4K monitor (S2721QS).
I have tried all different connectors and makes no difference.
Could you try HDMI to HDMI Cable?

I remember having the same issue on some Core 2 Duo systems back in the old days. Maybe you can check in a newer system?
 

MacNB

New member
Joined
Oct 31, 2022
Messages
6
Motherboard
Dell GM3303 (Inspiron 530)
CPU
Xeon E5450
Graphics
Sapphire HD7770 1GB GHz Edition
OS X/macOS
10.13.x
Bootloader
  1. Clover (Legacy)
  2. OpenCore
Mac
  1. iMac Pro
  2. Mac Pro
  3. MacBook Pro
Mobile Phone
  1. iOS
Could you try HDMI to HDMI Cable?
Tried that already.
Tried Mini-DP to HDMI adapter, HDMI to DP adapter, DVI-D to HDMI but nothing works.

It's definitely High Sierra drivers issue with this card - especially the accelerated drivers. I can boot into the High Sierra Recovery partition and that works fine (although not accelerated) and can even go through the whole process on screen to reinstall the OS. But once install is complete, first boot....black screen
 

EliteMacx86

Administrator
Staff member
Joined
Jul 22, 2018
Messages
4,147
Motherboard
Supermicro X11SPA-T
CPU
Intel Xeon W-3275 28 Core
Graphics
2xAMD RX 580 8GB
OS X/macOS
11.0.x
Bootloader
  1. OpenCore
Mac
  1. Mac mini
  2. MacBook Pro
Mobile Phone
  1. Android
  2. iOS
It's definitely High Sierra drivers issue with this card - especially the accelerated drivers. I can boot into the High Sierra Recovery partition and that works fine (although not accelerated) and can even go through the whole process on screen to reinstall the OS. But once install is complete, first boot....black screen
Exactly, I remember having the same issue on some Core 2 Duo systems back in the old days. Maybe you can check in a newer system? Probably, Sandy Bridge and newer
 

MacNB

New member
Joined
Oct 31, 2022
Messages
6
Motherboard
Dell GM3303 (Inspiron 530)
CPU
Xeon E5450
Graphics
Sapphire HD7770 1GB GHz Edition
OS X/macOS
10.13.x
Bootloader
  1. Clover (Legacy)
  2. OpenCore
Mac
  1. iMac Pro
  2. Mac Pro
  3. MacBook Pro
Mobile Phone
  1. iOS
Exactly, I remember having the same issue on some Core 2 Duo systems back in the old days. Maybe you can check in a newer system? Probably, Sandy Bridge and newer

Yeh I could try it on my Ivy Bridge system but that's tied up at the moment.

I flashed a UEFI GOP to the VBIOS as mentioned in the OC config guide. But that makes no difference as I guess the motherboard BIOS is not UEFI.

I have a work around but it's not ideal.
The work around is to use Sierra 10.12 drivers (attached).
It's not ideal. Two issues: (a) OS Updates kills these drivers (of course) and have to re-install them (via Screen share from another Mac). (b) quick view (in Finder) does not always work as the file contents are displayed as a red screen.

Ah well. Time to give up. High Sierra was used occasional for a couple of Apps that don't work in Catalina+
 

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  • Sierra-HD7770 drivers.zip
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EliteMacx86

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Messages
4,147
Motherboard
Supermicro X11SPA-T
CPU
Intel Xeon W-3275 28 Core
Graphics
2xAMD RX 580 8GB
OS X/macOS
11.0.x
Bootloader
  1. OpenCore
Mac
  1. Mac mini
  2. MacBook Pro
Mobile Phone
  1. Android
  2. iOS
The work around is to use Sierra 10.12 drivers (attached).
I was going to suggest that!
Two issues: (a) OS Updates kills these drivers (of course) and have to re-install them (via Screen share from another Mac).
This is expected!
(b) quick view (in Finder) does not always work as the file contents are displayed as a red screen.
Quick Look was having issues on High Sierra.

Did you test it on Mojave?
 

MacNB

New member
Joined
Oct 31, 2022
Messages
6
Motherboard
Dell GM3303 (Inspiron 530)
CPU
Xeon E5450
Graphics
Sapphire HD7770 1GB GHz Edition
OS X/macOS
10.13.x
Bootloader
  1. Clover (Legacy)
  2. OpenCore
Mac
  1. iMac Pro
  2. Mac Pro
  3. MacBook Pro
Mobile Phone
  1. iOS
Did you test it on Mojave?

Installed Mojave. Same issue. Well almost.
After reboot, there's a mouse pointer on the screen but no login screen.
Occasionally, mouse disappears.
Shared drives are available across the net.
SSH into the system works.

Installing Sierra drivers, helps but colours are screwed up.

Suffice to say this particular Sapphire HD7770 1GB Ghz Edition GPU does not work on High Sierra and Mojave.

It works with Catalina, Big Sur and Monterey.
 
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EliteMacx86

Administrator
Staff member
Joined
Jul 22, 2018
Messages
4,147
Motherboard
Supermicro X11SPA-T
CPU
Intel Xeon W-3275 28 Core
Graphics
2xAMD RX 580 8GB
OS X/macOS
11.0.x
Bootloader
  1. OpenCore
Mac
  1. Mac mini
  2. MacBook Pro
Mobile Phone
  1. Android
  2. iOS
Installed Mojave. Same issue. Well almost.
After reboot, there's a mouse pointer on the screen but no login screen.
Occasionally, mouse disappears.
Shared drives are available across the net.
SSH into the system works.

Installing Sierra drivers, helps but colours are screwed up.

Suffice to say this particular Sapphire HD7770 1GB Ghz Edition GPU does not work on High Sierra and Mojave.

It works with Catalina, Big Sur and Monterey.
Thanks for reporting. List updated!
 
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