MP 1,1-5,1 RX 580 and 5770 in 2010 Mac Pro (5,1)?

[MotionManSF]

I currently have a Sapphire Radeon RX 580 8 GB PCIe GPU in my 2010 5,1.

I also have a ATI Radeon 5770 1GB.

I would like to have both installed and working, but I have, thus far, been unsuccessful.

The 580 is powered by a dual mini-6-pin to 8-pin. The 5770 is powered from a drive bay SATA cable (SATA to 6-pin).

When I have them both installed, I get no video from the 580 and just a boot screen with the apple and progress bar that stops halfway (for hours before I give up) on the 5770.

What am I missing? Any thoughts?

Thanks.

MotionMan

 

[kohlson]

#2

 

[MotionManSF]

I just learned that, apparently, multiple GPUs of different makes/models does not work past High Sierra on the 5,1's.

Bummer.

MotionMan

 

[MarkC426]

It is because one is metal, one is not.
Why do you want the 5770 in there anyway.

 

[MotionManSF]

It is because one is metal, one is not.
Why do you want the 5770 in there anyway.

Boot screen.

MotionMan

 

[tsialex]

Boot screen.

MotionMan

OpenCore or the recently updated rEFInd work with a RX 580 for pre-boot configuration support.

 

[MotionManSF]

OpenCore or the recently updated rEFInd work with a RX 580 for pre-boot configuration support.

For whatever reason, I am trying to avoid boot managers. I am looking into flashing the 580, so this may be becoming more of an academic exercise (which, apparently, has run into a huge roadblock).

MotionMan

 

[MIKX]

Boot screen.

MotionMan

AND HD7950 and HD 7970 can both be EFI flashed for bootscreensand are both Metal.

The HD 7970 is not so far behind the RX 580 - I have an EFI FLASHED SAPPHIRE DUAL-X 3 GB = Nice, strong, reliable card.,

 

[Omedus]

I have an install question. I just got rx 580 installed - 2 six pin it lights blue. But no hdmi. My drive already had Mojave. Is there anything I need to do?

 

[MarkC426]

Is it a sapphire pulse rx580?
What is blue....?

 

[Omedus]

It’s red - Radeon

 

[MarkC426]

You mention above it lights blue, do you mean the gpu has lighting on it.

 

[Omedus]

Yes light is on gpu

 

[MarkC426]

Have you tried display port.
Which rx580 is it?
Does it have two 6 pin connectors.

edit: sorry should be one 8 pin on the gpu.

 

[Omedus]

Yes, 2 six pin cables. I only have hdmi no display port. Wondering is the firmware/Mojave issue

 

[tsialex]

Yes, 2 six pin cables. I only have hdmi no display port. Wondering is the firmware/Mojave issue

Are you sure? XFX RX 580 OC cards usually have 6+8pins power inputs.

 

[Omedus]

Sounds right, 6-8 pin. I had to get a second cable. I did get a red light at first then after properly connecting I get blue.

 

[tsialex]

Sounds right, 6-8 pin. I had to get a second cable. I did get a red light at first then after properly connecting I get blue.

You can't power a 6+8 card from just the backplane PCIe AUX connectors, unless your card is one that can be connected to an eVGA PowerLink.

There is not enough power, the workaround is to use the PowerLink to balance the power draw equally from the two backplane connections or get 6-pin powered from two of the SATA power connections.

 

[Omedus]

I may have misunderstood, I connected two 6 pin cables to the back. I’m wondering if issue is Mojave/firmware. I installed a cloned ssd with Mojave. There is talk of H Sierra

 

[tsialex]

I may have misunderstood, I connected two 6 pin cables to the back. I’m wondering if issue is Mojave/firmware. I installed a cloned ssd with Mojave. There is talk of H Sierra

You have to first power the GPU correctly. A 6-pin cable on a 8-pin receptacle will not work, a 6-pin to 8-pin cable will damage the backplane.

Second, do a clean install of High Sierra with your AppleOEM GPU, don't use patched/hacked installs, check the BootROM release and if needed upgrade to the current High Sierra release MP51.0089.B00.

After you get your GPU working with 10.13.6 then you start with Mojave.

MP5,1: What you have to do to upgrade to Mojave (BootROM upgrade instructions thread)

Please fully read this first post, you will probably find that you have one or more problems described into the various notes below. Mojave will only install if you have upgraded your BootROM to the current release and your Mac Pro have a Metal capable GPU*. If you are trying to install Mojave...

forums.macrumors.com

 

[Sean__Wong]

Good morning MacRumours Hive brain.

I'm looking for an alternative for my Sapphire Pulse RX580 to act as a standby 'spare' in case my Sapphire unit gets fried in my TB3 USB recabling project.

any one tried this Gigabyte RX580?
It has a nice 3 x DP1.4 outputs compred to the Sapphire Pulse RX580

Radeon™ RX 580 GAMING 8G (rev. 1.0/.1.1/1.2) Specification | Graphics Card - GIGABYTE Australia

Discover AORUS premium graphics cards, ft. WINDFORCE cooling, RGB lighting, PCB protection, and VR friendly features for the best gaming and VR experience!

www.gigabyte.com

 

[MarkC426]

What do you mean spare....?
Get the same one you have..... Sapphire Pulse.