MP 1,1-5,1 Problems with Graphic cards on MAC PRO 2009 5.1 GPU

[Maucote]

Hello everyone, I specify that I am French and that I speak English badly, also please forgive me for my errors of language.
I present to you my problem:
- I have a 2009 Mac Pro upgraded to 5.1 with a GT 120 video card running High Sierra boot rom 144.0.0.0.0

- I installed a GT 640 2 Go, no boot screen (this is normal, the card is not flashed), works under High Sierra after login. I updated to Mojave, black screen result, I think the drivers no longer exist in Mojave.

- So I got myself a Sapphire rx 580 Nitro + 8GB (tested on PC and Hackintosh, no problem). I powered it with a 2x6 mini-pin to 8-pin Y cable. I never got a display neither under High Sierra nor on Mojave.

- When pairing the RX 580 with the GT 120 under High Sierra, I noticed that the RX 580's fan stopped when the login screen was displayed. I connected an extra 6 pin SATA to PCIe cable on the RX 580, still the same problem. Nothing is displayed on the RX 580.

- So, I removed a Sapphire RX 560 Pulse from my Hackintosh to install it in my Mac Pro. I powered the card with a simple 6 mini-pin to PCIe. 6pin cable and then with a SATA to PCIe 6 pin cable. And I have exactly the same problem, fan stop on login, no display at all on this card. In the system information, the RX 560 appears with its 4 GB, Metal compatible next to the GT 120.

- Finally, I wanted to test with an old Sapphire Radeon HD 4890 1 GB. This card is not recognized by High Sierra but no fan problem.

- I even tested all these cards with OpenCore but nothing is displayed.

- Well, sorry for this long post but I can't find any solutions. Do you have any idea of the origin of the problem.


Thank you for your response and see you soon. Best regards

Jean-Marc

 

[krakman]

Troubleshooting suggestions:

Have you tried resetting the nvram. Cmd+alt+P+R on start up?

Use a paintbrush to remove dust in the pcie slot?

What version of high Sierra are you running? Why don't you install Mojave on a spare hard drive. This is the last supported OS on a 5.1 which has drivers for your GPU.

 

[h9826790]

Most likely your RX580 and RX560 are working properly. This is from the Sapphire webpage

Anyway, how you connect the monitor? Any adaptor in between? A direct DP or HDMI connection should be very reliable.

When you install the RX580 with the GT120, did you check the system info page? If possible, please make screen captures like this. So that we can have better understanding of what's happening.

 

[Maucote]

Troubleshooting suggestions:

Have you tried resetting the nvram. Cmd+alt+P+R on start up?

Use a paintbrush to remove dust in the pcie slot?

What version of high Sierra are you running? Why don't you install Mojave on a spare hard drive. This is the last supported OS on a 5.1 which has drivers for your GPU.

Hello, thank you for your response. I cleaned the Mac Pro and the graphic cards with compressed air and I zapped the Pram before each installation. I don't understand why it's not working.
Best regards
Jean-Marc

 

[Maucote]

Most likely your RX580 and RX560 are working properly. This is from the Sapphire webpage
View attachment 2124706

Anyway, how you connect the monitor? Any adaptor in between? A direct DP or HDMI connection should be very reliable.

When you install the RX580 with the GT120, did you check the system info page? If possible, please make screen captures like this. So that we can have better understanding of what's happening.
View attachment 2124707
View attachment 2124708

Hello, thank you for your response.

I connect the card in DVI but I also tested in HDMI but with an HDMI / DVI adapter

I'll do screen capture on High Sierra today

Best regards
Jean Marc

 

[tsialex]

Did you tried a clean install of High Sierra? Some apps install kexts that are incompatible with AMD Polaris GPUs and you get a black screen whenever you have a Polaris GPU installed.

Try to do a clean install to an empty/erased disk and try again your AMD Polaris GPUs.

 

[krakman]

I connect the card in DVI but I also tested in HDMI but with an HDMI / DVI adapter

try a DP (display port) cable

and get a spare hard drive and fresh install High Sierra or Mojave.

 

[Maucote]

Did you tried a clean install of High Sierra? Some apps install kexts that are incompatible with AMD Polaris GPUs and you get a black screen whenever you have a Polaris GPU installed.

Try to do a clean install to an empty/erased disk and try again your AMD Polaris GPUs.

Hello and thank you all for the quick replies. Yes I formatted the SSD in APFS and installed High Sierra and Mojave from a USB key.

Here are the screenshots under High Sierra with the RX 560 in 16x slot n°1 and the GT 120 in 16x slot n°2. No video output on the RX 560. Which is incomprehensible as it seems to be well supported.

 

[MarkC426]

I seem to recall something waaaaaaay back, which suggested you couldn't run Mojave with AMD and Nvidia cards together....🤔. Try removing the GT120.

 

[Maucote]

OOOuuups forget to post this

 

[tsialex]

Try with just the RX 560.

Since it's a cross-flashed early-2009 you could have a faulty BootROM, is very common issue with Mac Pros that had a NVIDIA Titan installed in the past.

 

[Maucote]

I seem to recall something waaaaaaay back, which suggested you couldn't run Mojave with AMD and Nvidia cards together....🤔. Try removing the GT120.

Hello and thank you very much, I know that, I installed Mojave from another Mac, but even after a clean install, the listed GPU cards installed alone do not show anything. But Mojave still shows up with the GT 120 alone...

 

[Maucote]

Try with just the RX 560.

Since it's a cross-flashed early-2009 you could have a faulty BootROM, is very common issue with Mac Pros that had a NVIDIA Titan installed in the past.

I have already tried with the RX 560 alone, it does not display anything even after waiting for a very long time.
The BootRom was updated two days ago at the time of the clean install of High Sierra

 

[MarkC426]

Have you tried the RX560 in the other PCIe slot, where the GT120 is...?

 

[tsialex]

I have already tried with the RX 560 alone, it does not display anything even after waiting for a very long time.

How your display is connected? Resolution? Model of the display? Exact model of the GPU (is one of the cost reduced Sapphire models)?

The BootRom was updated two days ago at the time of the clean install of High Sierra

This means absolutely nothing to the issue I've written about, Apple efiflasher only touches the EFI part of the BootROM image, the problem is inside the NVRAM volume, not in the EFI.

If the GPU is tested with a PC, then your next step is a BootROM reconstruction service.

 

[Maucote]

How your display is connected? Resolution? Model of the display? Exact model of the GPU (is one of the cost reduced Sapphire models)?

This means absolutely nothing to the issue I've written about, Apple efiflasher only touches the EFI part of the BootROM image, the problem is inside the NVRAM volume, not in the EFI.

If the GPU is tested with a PC, then your next step is a BootROM reconstruction service.

OK, I admit that I don't know anything about Bootrom. It is a Saphirre RX 560 Pulse with 4 GB, here are the pictures
I am using the DVI port

 

[Maucote]

OK, I admit that I don't know anything about Bootrom. It is a Saphirre RX 560 Pulse with 4 GB, here are the pictures
I am using the DVI port

The card has been tested on PC and works perfectly, moreover it worked on a Hackintosh under Clover

 

[tsialex]

I have the same GPU, with the exact same part number, and works fine, so, from what you wrote the most probable issue is a corrupt BootROM.

 

[Maucote]

I have the same GPU, with the exact same part number, and works fine, so, from what you wrote the most probable issue is a corrupt BootROM.View attachment 2124913

😭😭😭😭😭😭😭😭😭
Hard to find a backplane
Thank you for your help, I read your post: "What to do if your Mac Pro bricked" and I tell myself that I will leave this Mac Pro as it is. I'm going to look for a 2012 one instead.
No other way to fix it ?

 

[tsialex]

😭😭😭😭😭😭😭😭😭
Hard to find a backplane
Thank you for your help, I read your post: "What to do if your Mac Pro bricked" and I tell myself that I will leave this Mac Pro as it is. I'm going to look for a 2012 one instead.
No other way to fix it ?

BootROM reconstruction service, but you should dump and send me for confirmation. I'll send you a PM.