Solved Help Needed - AM5 Build shows Prohibited Sign on EVERY boot

[htt37ps]

Hey yall,

I'm trying to Ryzentosh my build,
Ryzen 9 7900X
Aorus X670E Master
32GB DDR5

And I've created my own EFI by following the Official OpenCore Guide. Unfortunately on every boot, I either see Prohibited sign or instant restart (this happens when I don't whitelist the 4th entry in my MMIoWhitelist). Any help would be appreciated! USB is already mapped.

You can find my EFI & Slide Values and the Memory Map in the Attachment!

 

[Edhawk]

Have a look at this guide from @CaseySJ it is transferable to other AMD5 systems, like yours.

Asus X670E Gene EFI -- Adaptable to Other X670, X670E, B650 and B650E Boards

** Preliminary Build Guide for Asus X670E Gene and Other AM5 Boards ** Also refer to this Outline of the Steps Supports Big Sur, Monterey and Ventura 14 April 2023: Added OpenCore 0.9.1 EFI Folder See post #5 below for details and EFI folder NOTE: If you choose to use the files and...

forum.amd-osx.com

 

[htt37ps]

Fixed -- Had to correct the MMIO Value, thank you for your help!

Have a look at this guide from @CaseySJ it is transferable to other AMD5 systems, like yours.

Asus X670E Gene EFI -- Adaptable to Other X670, X670E, B650 and B650E Boards

** Preliminary Build Guide for Asus X670E Gene and Other AM5 Boards ** Also refer to this Outline of the Steps Supports Big Sur, Monterey and Ventura 14 April 2023: Added OpenCore 0.9.1 EFI Folder See post #5 below for details and EFI folder NOTE: If you choose to use the files and...

forum.amd-osx.com