For Dell
Test:Dell:M4800, M4700, M4600(modified deriver .inf)
HP:8570w 8770w
For iMac
Experimental
M5100 2GB support ( Radeon R9 M370X 2GB)
Warning:
This card is easy to install but during the initial software installation.
You need to install OpenCore in advance and add the changes posted before booting into macOS.
This GPU will be identified by the macOS as
FirePro M5100
and by MetalBench and GeekBench5 as
Radeon R9 M370X
. The current vBIOS supports Elpida video memory.
The card will not boot into macOS without the adjusted CAIL values in the config.plist.
Tests:
iMac11,x wake fully functional with OCLP 0.3.2 and later
iMac12,1,
iMac12,2, in progress sleep/wake working, NVRAM corruption reported, though
iMac10,1:
Use the M5100-DELL vBIOS for the red Dell card, only!
After installing the card it will not simply boot directly into any macOS version (WindowServer crash) unless you install and use OpenCore and apply the settings described below (I will try to get the changes added to OCLP, later).
So you need to onto your boot disk before booting in your current installation in normal multi user mode.
Tested systems:
- iMac12,2: sleep/wake broken on some systems, but others reports success?
- iMac12,1: not tested
- iMac11,1: no problems
- iMac11,2: no problems
- iMac11,3: no problems
Known issues:
- external display sync is difficult on all systems and needs the main LCD or the system to go to display sleep once after connecting the external display
Known features:
- Airplay is working until Catalina as with any other
metal card on iMac11,x and iMac12,2 (without using QuickSync)
- high metal scores
- boot screen with OpenCore
- brightness control working
- GPU power management working
- needs macOS 10.8.3 or better (HD7000 support)
- still full Monterey support (no root patching needed unlike Kepler)
Performance:
- GeekBench Metal and OpenCL: > 10.000
- Valley DELL: 23.46 FPS, 981 Score
- MetalBench: 31 MRays/s
- CoreClock: 300 MHz idle - 850 MHz max
- MemoryClock: 150 MHz idle - 1125 MHz max
- PowerDraw: 5W idle - 35W max
Warnings:
- do not flash the vBIOS from the DELL card onto the other two cards, it will cause a bad flash and will make the card unusable
- a bad flash prevents the iMac from booting and running the Linux flash utility, again!
- bad flashes can only be cured by using a CH341A clip or some other nasty tricks
News:
- OCLP 0.3.2 and later support this card. So you can update OC using OCLP in future. Nevertheless the boot strap process is since you cannot boot the normal macOS unless OC has been installed in advance!
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