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Right now I’m running an AMD Sapphire 560 Pulse 2GB in Sierra 10.12.6. Sleep and wake work reliably with this card with no weird restarts yet. Also I don’t have to use a helper iGPU/secondary GPU to get it working. This is because of the support brought for Radeon Pro cards beginning with Sierra 10.12.6 as part of the new mac releases.
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Hello,
As the title says, I have a R9 280 from Sapphire, but the OS X shows something different with a huge amount of VRAM.
This is the specs:
Model Name: Mac Pro
Model Identifier: MacPro4,1
Processor Name: Quad-Core Intel Xeon
Processor Speed: 2.93 GHz
Number of Processors: 2
Total Number of Cores: 8
L2 Cache (per Core): 256 KB
L3 Cache (per Processor): 8 MB
Memory: 64 GB
Processor Interconnect Speed: 6.4 GT/s
Boot ROM Version: MP41.0081.B07
SMC Version (system): 1.39f5
SMC Version (processor tray): 1.39f5
AMD Radeon HD 7950:
Chipset Model: AMD Radeon HD 7950
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 914361344 MB
Vendor: ATI (0x1002)
Device ID: 0x679a
Revision ID: 0x0000
ROM Revision: 113-E2080C-101
EFI Driver Version: 01.00.624
Displays:
S23C550:
Resolution: 1920 x 1080 @ 60Hz (1080p)
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
Television: Yes
SMT24A550:
Resolution: 1920 x 1080 @ 60Hz (1080p)
Pixel Depth: 32-Bit Color (ARGB8888)
Mirror: Off
Online: Yes
Rotation: Supported
Television: Yes
I tried both original BIOS for the card and the patched one from netkas. I can see, for example the boot screen and play some games like Bioshock, but this weird value for VRAM concerns me.
Also, after some hours playing a game, the screen freezes and the system restarts. It happens despite of the BIOS version (EFI or regular one). According to the sensors, CPU/GPU temperature looks okay.
With this in mind, I want to ask:
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- Anyone here is having similar issues?
- Is there anything that I can do?
Thanks!
Mac Pro, OS X El Capitan (10.11)
Posted on
This article applies only to video cards that originally shipped with a specified Mac Pro or were offered as an upgrade kit by Apple. Similar cards that were not provided by Apple may have compatibility issues and you should work with the vendor of that card to confirm compatibility.
Mac Pro (2019)
Learn more about cards you can install in Mac Pro (2019) and how to install PCIe cards in your Mac Pro (2019).
Mac Pro (Late 2013)
Mac Pro (Mid 2010) and Mac Pro (Mid 2012)
Mac Pro (Early 2009)
Mac Pro (Early 2008)
![]() Mac Pro (Original)
* To identify a graphics card part number, check the label on the back of the card.
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