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ASUS X99 Boards - Big Sur (Not Compatible)

Joined
Nov 27, 2010
Messages
78
Motherboard
ASUS X99-A II
CPU
E5 2690v3
Graphics
RX 580
Mac
  1. iMac
Mobile Phone
  1. iOS
I went from 44000 GB score to almost 52000 and is stable on Catalina (free performance boost)
Can you share your EFI folder I use Clover and not familiar with OC
I have not turned on any boost, I am afraid too hot for my case.

Here is my EFI files.

Suggest to follow OC guide to generate your own SSDT files as well as the serial
 

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  • EFI.zip
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Joined
Jul 23, 2012
Messages
227
Motherboard
ASUS X99 AII
CPU
E5-2696 v3
Graphics
RX 560
Mobile Phone
  1. iOS
I have not turned on any boost, I am afraid too hot for my case.

Here is my EFI files.

Suggest to follow OC guide to generate your own SSDT files as well as the serial
Thanks I have SSDT files with clover but I'll dive in OC a bit more now
 
Joined
Aug 29, 2011
Messages
314
Motherboard
Asus ProArt Z490
CPU
i9-10900KF
Graphics
RX 5700 XT
Mobile Phone
  1. Android
Thanks to @stream88, he has patched the ASUS X99-A II on MSR2 and NVRAM. I can apply to my system without any problem which is running on Catalina. Later, I will schedule to upgrade to Big Sur

https://www.win-raid.com/t8527f54-Asus-X-AII-Unlock-MSR-xE-And-Native-NVRAM.html#msg140667

Just in case its helpful for someone, after I manually applied those patches to my bios, I finally am able to use Big Sur on my Asus X99 A2, I even disabled nvram patches from Open Core and everything seems to be working fine.
 

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Joined
Sep 7, 2012
Messages
16
Motherboard
Rampage V Edition 10
CPU
Xeon E5-2683 v4
Graphics
Radeon RX 6800 XT
Mac
  1. Mac Pro
Got an used Rampage V Edition 10 with cheap price and replaced old Sabertooth X99 with it. Also, replaced GTX Titan Black with Radeon RX 6800 XT. Installed Big Sur from scratch.

Now Big Sur 11.5.2 with OC 0.7.2 is working fine. Of course, I have added both "MSR 0xE2" and "NVRAM white list" patches to the original BIOS.

Following features which never worked before seems working fine on this updated build.
- X99 based USB 3.0 (on the previous build, only USB 2.0 worked)
- Integrated Audio (on previous build, always KP whenever specified alcid=x)

Following on-board peripherals works fine with appropriate kexts.

Audio
ALC1150? needs AppleALC.ketx (ALZA -> HDEF patch, alcid=1)

Bluetooth
BCM20702Ax needs BrcmPatchRAM3, BrcmFirmwareData and BrcmBluetoothInjector kexts to get it works

LAN
Intel I211 needs IntelMausi.kext
Intel I218V needs SmallTreeIntel82576.kext

WiFi
BCM4360x works with Big Sur native driver

USB
2.0 (X99 based) works with Big Sur native driver (EHCx -> EH0x patch)
3.0 (X99 based) needs XHCI-unsupported.kext (XHCI -> XHC patch)
3.1 (ASM1142) works with Big Sur native driver


This will be my last X99 build. I am planning to switch to more recent platform within next 1-2 years...
 
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