Has anyone had a chance to do this?
And has it been established as to whether or not the Apple dev RX 580 Pulse does indeed have an EFI ROM?
My assumption is not.
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High Sierra on cMP (4,1 flashed to 5,1)
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And has it been established as to whether or not the Apple dev RX 580 Pulse does indeed have an EFI ROM?
My assumption is not.
Don't see why it should when its plug and play + the Boot screen is on the motherboard now.
AFAIK the Dev kit RX580 is a regular RX580 firmware wise but the Apple drivers specify look at its BIOS Part number and apply some special things that would be done normally by a Mac EFI firmware like applying a proper name to the GPU for about this mac etc, and a proper frame buffer personality, but this still wont give you boot screens on a Mac
Don't know much about it, as i have only run through those informations on netkas' forum, but in recent Apple AMD lineup EFI part of the bios is not in the GPU anymore.
As MacVidCards said more than few times, you can have EFI boot screen if you flash the card but macOS will boot into black monitors, or you can have usable GPU in macOS without EFI boot screens.
That is one of the reasons why you don't see any AMD GPU's on his site after R9 280X.
Also, if you read the GPU ROM from newer Macs (post 2012 IIRC) with GPU-Z, you'll get only PC part of the BIOS.
Hope to be corrected on any part of the post if I'm wrong.
Not here in North Europe.
Pretty much sold out in each and every possible shop or store.
Too bad to hear that. It's not good to live too close to China (because of the pollution
), but occasionally has benefit, especially when looking for some made in China hardware 
Mac Pro 5,1 2010 running 10.12.6. I just installed a Sapphire RX 580 Nitro+ 4GB version. No Boot screen. Login screen works as normal. Is recognised as "AMD R9 xxx 4096 MB" Metal is Supported, All resolutions over DP work on my 27" Dell Screen. Lux Bench Score 13794 - Geekbench 4 OpenCL test 132695. Blows the original 5770 away. System Profile can't display PCI tab as says error gathering information. Am going to download and test 10.13 beta soon. All 36 GPU units are recognised but no idea if the PCIE bus is running at 2.5 or full 5G link speed.
Attachments
Install HDMIAudio.kext from this forum if you want to see PCI info with unflashed GPU.
In my experience that should work.
In my experience that should work.
10.13 should able to show that natively. In my own test, the bug is fixed. But if not, still worth to try that kext.
I didn't understand everything. Can someone help me?
a) Is High Sierra compatible with a 4,1>5,1 6 core Mac Pro 2009? I know it is with a Mac Pro 2010.
b) Will the installer create a bootable volume on my pci Tempo SSD?
c) Will the other volumes with El Capitan and Sierra still be accessible and bootable after this update?
d) Is it possible to go back from APFS to the former file system in case something goes wrong?
e) I have a Geforce 980. So I need the webdriver. Is there already one for 10.13?
f) Is the firmware update necessary if I install HS on a harddrive first and then clone it to the SSD with CCC?
TIA.
a) Is High Sierra compatible with a 4,1>5,1 6 core Mac Pro 2009? I know it is with a Mac Pro 2010.
b) Will the installer create a bootable volume on my pci Tempo SSD?
c) Will the other volumes with El Capitan and Sierra still be accessible and bootable after this update?
d) Is it possible to go back from APFS to the former file system in case something goes wrong?
e) I have a Geforce 980. So I need the webdriver. Is there already one for 10.13?
f) Is the firmware update necessary if I install HS on a harddrive first and then clone it to the SSD with CCC?
TIA.
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a) Yes
d) I don't believe so. Not without wiping and reinstalling the OS.
e) No web driver exists yet for HS. NVIDIA usually release soon after the new OS is officially released. Usually a day or two.
b) Yes as it looks like any other SATA drive
c) Yes - no change to how non APFS drives are dealt with
f) When you install HS it does the firmware update first and won't proceed without it. As far as I can tell it updates regardless if you have a spinner or SSD.
You could install HS on another system and clone the drive. I don't think it checks firmware when it boots.
c) Yes - no change to how non APFS drives are dealt with
f) When you install HS it does the firmware update first and won't proceed without it. As far as I can tell it updates regardless if you have a spinner or SSD.
You could install HS on another system and clone the drive. I don't think it checks firmware when it boots.
owbp said:
Possibly related to the above, the first beta of High Sierra i.e. build 17A291m unlike previous versions of OS X/macOS did support audio over HDMI without needing the HDMIAudio.kext. Unfortunately subsequent builds including the current 17a360a have once again broken audio over HDMI meaning the HDMIAudio.kext is once more needed. This is on a MacPro5,1 with a Radeon HD 7950.
PS. Still looking for confirmation whether an nVME SSD is now bootable on a MacPro5,1 that has had its firmware upgraded by the High Sierra installer. It seems clear enough it is readable as a data drive but not seen any posts confirming booting.
No booting on NVMe unfortunately. This very likely won't ever be possible.
Can I install High Sierra without APFS and keep the good old HFS+ on my 4,1-5,1 Mac Pro 2009?
I often use lower systems and these can't see an APFS formatted disk. Also disk utility from El Capitan doesn't recognize APFS. I can't take the risk.
I often use lower systems and these can't see an APFS formatted disk. Also disk utility from El Capitan doesn't recognize APFS. I can't take the risk.
Try install it on a HDD, then clone it to a HFS+ formatted SSD.
This might be a little late but cMPs will install High Sierra without the default conversion to APFS. The GM may be different (I am currently trying to find that out myself) but I've been wanting APFS to work on my cMP since the first developer beta and while non boot drives could be formatted with APFS from the terminal, all the betas up to now have formatted the boot drive HFS+. I even tried to force it by converting it to APFS from the terminal in the installer only to discover that this was a very, very bad idea that took days to undo.
An important point: when the checkbox does appear, it is in the middle of the screen, near the bottom, damned near off the screen and if you do not uncheck it, you will get APFS. It may not appear in cMP but if you do not want APFS then uncheck the box.
An important point: when the checkbox does appear, it is in the middle of the screen, near the bottom, damned near off the screen and if you do not uncheck it, you will get APFS. It may not appear in cMP but if you do not want APFS then uncheck the box.
The APFS checkbox has been gone for several beta versions now.
So, are you saying that the boot volume has to be converted to APFS when installing High Sierra?
Ah, thanks Lou.
I was planning on staying with HFS+. If I do, I'll have to install onto a spinner and then clone it back to my SSD.