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sequoia watchgreen error "cpu unsupported" help :(

med

New member
Joined
Nov 12, 2025
Messages
3
Motherboard
MSI B450M MORTAR MAX
CPU
AMD Ryzen 3700x 8-core
Graphics
Sapphire Nitro+ AMD Radeon RX 580 4gb
OS X/macOS
15.x
Bootloader
  1. OpenCore (UEFI)
Mobile Phone
  1. Android
I don't know what's causing this. I pulled an all nighter to make this and it still failed :(
specs:
MSI B450M MORTAR MAX
AMD Ryzen 3700x 8-core
Sapphire Nitro+ AMD Radeon rx 580 4gb
16gb ram

EFI: https://drive.google.com/file/d/1l_cRIcWx1V0f8DMu24mEJrr9kVFl93O2/view?usp=sharing

i used zen despite it saying on the website that it only supports up to high sierra, could it be that the patches are outdated? when I used opcore-simplify it said my hardware could support up to tahoe so I just ignored it thinking that the

 
Last edited:
Is devirtualisemmio On? Try turning it off
 
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Your EFI is not as per the guide.
If you mean the guide in this website, Yeah, I didn't follow that one. I did dortania because that was the first thing everyone recommended. I will check it out. I just thought I'd ask first instead of throwing all that work in the trash and restarting from scratch.

could you give me some pointers on where to go? im a bit lost
 
Last edited:
If you mean the guide in this website, Yeah, I didn't follow that one. I did dortania because that was the first thing everyone recommended. I will check it out. I just thought I'd ask first instead of throwing all that work in the trash and restarting from scratch.

could you give me some pointers on where to go? im a bit lost
There are several things that aren't needed. What are your BIOS settings?

Start here:
 

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