X299 Big Sur Support

[Junologue]

Anyone has an idea guys ?

Sounds strange. Post your EFI?

 

[egroys]

If you're on OC 0.6.6 you should be good.
Depending on which BIOS you have, make sure you either have SSDT-RTC0.aml or SSDT-RTC0-NOAWAC.aml and the ASMedia.kext

So I updated my USB kext based on @Loloflatsix and I already had SSDT-RTC0 in my EFI but I am getting stuck here:
Should I try ASMedia kext instead of the Big Sur Modified USB Kext?
Edit: Added ASMedia.kext and still can't boot into Big Sur!

Thank you in advance, as always!

Oh! Also, does anyone know how to change the order in which volumes show up in OC Picker? I added a 'Z' to my clone drive name in hopes that it would be alphabetical and it still shows up first before my main boot drive!

 

[arkanis]

Sounds strange. Post your EFI?

Hey sure here you can see my OC folder.

Config is the following :

Intel i9-9900x
Gigabyte Designare EX x299
32Gb RAM
Sapphire Vega64

 

[engineer.sek]

Hackintosh #2

i9-9940x 3.3 GHz 14-Core
x299e-itx/ac
Kingston Hyper-x Impack SODIMM 16GBx4
M.2 x 3
DAN SFX CASE MOD
Corsair SF750
macOS BigSur 11.2.1

 

[Junologue]

Hey sure here you can see my OC folder.

Config is the following :

Intel i9-9900x
Gigabyte Designare EX x299
32Gb RAM
Sapphire Vega64

Nothing too weird about your config, apart from you having enabled macpromemorynotificationdisabler altough you're running imacpro1,1.

Added restrictevents.kext and changed your smbios to MacPro7,1, i would suggest that you try it.
I also added TSCAdjustReset instead of voodoo.

Remember to generate new serial/uuid/mlb since it's now a "different mac" =)

Let me know how it goes!

 

[arkanis]

Nothing too weird about your config, apart from you having enabled macpromemorynotificationdisabler altough you're running imacpro1,1.

Added restrictevents.kext and changed your smbios to MacPro7,1, i would suggest that you try it.
I also added TSCAdjustReset instead of voodoo.

Remember to generate new serial/uuid/mlb since it's now a "different mac" =)

Let me know how it goes!

Thank you for this, I've been running Voodoo because TSCA makes the computer hang at boot...

Maybe with the config change that will work, will test later today and will let you know how it went, I was thinking about reverting to OC 0.6.3 and see if this is solved or not as a test too.

Found a post saying it might be a BIOS firmware issue too...

Keep you posted and thanks again.

 

[Junologue]

Thank you for this, I've been running Voodoo because TSCA makes the computer hang at boot...

Maybe with the config change that will work, will test later today and will let you know how it went, I was thinking about reverting to OC 0.6.3 and see if this is solved or not as a test too.

Found a post saying it might be a BIOS firmware issue too...

Keep you posted and thanks again.

Oh alright! Just switch it back if that’s the case and try again. =)

 

[arkanis]

Oh alright! Just switch it back if that’s the case and try again. =)

Good news I'm on 0.6.6 and still on iMac Pro 1,1 and got all my cores back.

Was a BIOS issue, I reverted to previous version, restored defaults and changed minimum settings and it's working back to normal.

I remember I updated BIOS for TB3, but that's working too so...

Thanks for the help, gonna try TSCA later now that all the cores are "back"

 

[Junologue]

Good news I'm on 0.6.6 and still on iMac Pro 1,1 and got all my cores back.

Was a BIOS issue, I reverted to previous version, restored defaults and changed minimum settings and it's working back to normal.

I remember I updated BIOS for TB3, but that's working too so...

Thanks for the help, gonna try TSCA later now that all the cores are "back"

Glad it works! Consider removing memory notification if you’re gonna keep that smbios though =)

 

[egroys]

Now I am having an issue where I am trying to boot into a freshly installed Big Sur and the computer straight up shuts down while in verbose!

Any ideas?