Seems 970 EVO Plus have a firmware incompatibility with macOS (NVMe/AFPS/??), that 970 PRO and the original EVO don't have.Another data point:
I have a H*ckint*sh with the following parts:
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8700K
ASUS ROG STRIX-Z390-I motherboard
Sapphire RX 580 Nitro+ SE
Crucial 500GB SATA SSD (The Cx500 or whatever)
970 EVO Plus
Vanilla macOS install with SIP fully enabled.
* NO modifications to the OS install itself.
* Latest Lilu, AppleALC, WhateverGreen versions.
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Trying to use macOS with the 970 EVO Plus, the system freezes within a minute or two of boot. The screen displays my desktop but it's frozen and the keyboard/mouse don't work and the device doesn't ping from a remote device. So, a hard lock.
So I ended up installing macOS on the Crucial for now, and put Windows on the EVO 970 Plus. The Plus works flawlessly under Windows.
When I boot into macOS off of the Crucial, the 970 EVO Plus with its NTFS volume is automatically mounted. If I do not unmount it quickly the system will freeze within a minute or two in the exact same manner. (I fixed this by turning off auto mount with sudo vifs)
I read the posts in this forum and as a test, removed my RX 580 card from my system completely and the lock up scenarios I described continue to happen just the same.
TL;DR: macOS locks up whenever a partition on the EVO 970 Plus is mounted, whether it's APFS, HFS+, or NTFS. If the partition is not mounted, the system does not freeze. The system otherwise runs remarkably.
Edit: Just to clarify, I'm not looking for help, just offering a data point to this discussion. I'd be happy to answer any questions.
Let's keep 970 PRO booting problems separate from the 970 EVO Plus probable incompatibility with MP5,1, it's not the same thing. Mixing both will make it even harder to track this.
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