- Joined
- Apr 18, 2011
- Messages
- 1,492
- Motherboard
- ASUS Pro WS X299 Sage II
- CPU
- i9-10980XE
- Graphics
- W5500
- Mac
- Mobile Phone
I decided to (finally) upgrade to a flashed BIOS from @izo1 and I was not able to boot into 10.15.6! I flashed back down to 2002 and everything worked fine again. I am using Clover 5120. Do I need to add some sort SSDT or something?
Thank you in advance!
SSDT-AWAC or SSDT-RTC0 (forwards compatibility with Big Sur).
My note on Post 3:
Users that updated their BIOS to 3006 or higher on pre Cascade Lake X motherboards needed to add SSDT-AWAC.aml to boot macOS Catalina/Mojave. Same with all Cascade Lake X refresh motherboards. For Big Sur, SSDT-AWAC is replaced with SSDT-RTC0.aml since Big Sur is a lot more picky with RTC. Asus didn't map regions 0x72 and 0x73 so the SSDT-RTC0.aml adds those regions in. Like @Loloflatsix mentioned, there are two versions of SSDT-RTC0 on my github. SSDT-RTC0-NOAWAC.aml (BIOS 2002 and below) and SSDT-RTC0.aml (BIOS 3006 and higher or all Cascade Lake X motherboards).