[Sequoia | Ryzen 9 9950X + RX 6600 + X870-F] Boot stuck

[rrysio6]

Hi everyone,

I’ve been trying to get macOS Sequoia running on my system for the past two weeks, but unfortunately, I’ve hit a wall.

My setup:

• CPU: AMD Ryzen 9 9950X
• Motherboard: ASUS ROG STRIX X870-F GAMING WIFI
• GPU: AMD Radeon RX 6600

I’ve been working with both OpenCore-Simplify and various prebuilt EFI configurations I found on the forum. The furthest I got was using this configuration shared by master fabiosun : Link to the post

Without any modifications, this EFI allowed me to get the furthest in the boot process — but now I’m stuck at a point I just can’t get past. I’ve tried multiple tweaks and approaches, but the issue persists.

I usually prefer solving things on my own and rarely ask for help, but this time I’m out of ideas and energy. I’d greatly appreciate any tips, advice, or insights.


Thanks in advance!

 

[Edhawk]

You have a couple of names in your SSDT’s that are wrong and can’t be found (G002) and (G027). You need to find which of the ACPI tables in your /EFI/OC/ACPI folder contains these two names and delete them/it from your OC setup.

 

[rrysio6]

Thank you for your message.
I feel completely powerless in this situation.

I disabled the SSDT-USBW.aml file in the configuration, which removed the (G002) and (G027) entries from the screenshots. Unfortunately, the loading still stops at exactly the same point.

The photos show the same screen from different angles.

 

[Edhawk]

Top line on these two screen images of the verbose text show you still have a suspect SSDT in your setup. I can’t tell which issue is causing the error, other there is an issue as stated in the message in the top line.

Do you have ‘Above 4G Decoding’ enabled in your Bios? This is the preferred option.
If not do you have npci=0x3000 boot argument present in your config.plist?

 

[fabiosun]

@rrysio6 those ACPI patches in your config.plist are done for your motherboard?
you should post to CorpGhost your DSDT on amd OSX discord server if those patches are not for your motherboard
Asus has 4G in its bios (you have to enable it)
More important is to use exact ACPI patches for you motherboard bios

 

[rrysio6]

@rrysio6 those ACPI patches in your config.plist are done for your motherboard?
you should post to CorpGhost your DSDT on amd OSX discord server if those patches are not for your motherboard
Asus has 4G in its bios (you have to enable it)
More important is to use exact ACPI patches for you motherboard bios

Thank you for pointing me in the right direction. I had a feeling that there was still something I needed to do related to my motherboard, but I wasn’t sure exactly what, where to find it, or where to send it.

Could I ask for some links or resources that explain what DSDT actually is? I’d like to know where I can get it from or how to generate it, and where I should send it afterward to make sure everything is done correctly.

Thanks in advance for your help!




@

 

[fabiosun]

hi @rrysio6
You have to use an opencore debug version to extract your DSDT
Then, in your Config.plist misc/debug section you have to enable SysReport option
When you try to boot frm opencore menu you should find in your EFI ppartition a folder named Sysreport
ACPI folder inside is the one useful
you can post DSDT.aml file on AMD OSX Discord server tagging CorpGhost user (AKA CorpNewt on github)
He is a verykind user and helps many people to produce ACPI patches

 

[rrysio6]

You're the man!
The instructions were clear and quick - I’ve already completed them and I’m about to jump on Discord.

@fabiosun , Let me know how I can buy you a beer - you totally deserve it!

I’m attaching the SysReport — maybe it’ll come in handy for someone in the future.

 

[fabiosun]

No need of beer here..you can donate to @Shaneee forum if you like

Discord - Group Chat That’s All Fun & Games

Discord is great for playing games and chilling with friends, or even building a worldwide community. Customize your own space to talk, play, and hang out.

discord.com

this above is the link where i posted your DSDT, corpghost is also available to explain if you have the skill to understand about ACPI stuff

 

[fabiosun]

@rrysio6 Corpghost did the patches for you
you have to add to your config.plist in ACPI/patches section and replace the ones you have if differents)

 

[rrysio6]

I'm one mile further now, but still can't get past the next hurdle.
I'm trying to boot the macOS installer from two different USB drives – one created on Windows using com.apple.recovery.boot\BaseSystem.dmg, and the other made directly on a MacBook.
Unfortunately, both end the same way: I get the crossed-out circle symbol and nothing more.

I'm out of ideas at this point – maybe there's another tip or workaround?

Sometimes I feel like throwing it all away, but knowing how much time and effort I’ve already put into it - and the thought that maybe the reward is just around the corner - keeps me going.

Thanks in advance for any help!

 

[Edhawk]

The ‘Forbidden’ icon is usually caused by your USB ports not being configured correctly.

You may need to use a different USB port for the installation drive. USB2 ports are usually the safest bet.

 

[svan71]

The ‘Forbidden’ icon is usually caused by your USB ports not being configured correctly.

You may need to use a different USB port for the installation drive. USB2 ports are usually the safest bet.

Which is the preferred method for mapping in Tahoe?

 

[rrysio6]

Indeed – the USB port does make a difference!
I managed to take another step forward. Now I'm seeing a lot of logs on the screen, so I recorded a video – there was just too much going on to capture it in photos.
Unfortunately, the computer restarts right at the end.
I've attached the video – maybe something will catch your eye.