cucu87

I have a similar issue with BCM20702B0. Do you think there is a an explanation regarding C612? Thanks!

Hello greecedrummer, Can you point to a documentation that establish how to establish these magic numbers for "Fake CPUID" entry? In dortania this is documented like: Cpuid1Data: C3060300 00000000 00000000 00000000 In other places this is documented like: Cpuid1Data: F2060300 00000000 00000000 00000000 Thanks in advance!

Thanks @greecedrummer for your initial help! I can confirm, the issue seems that is caused by a limitation put in macOS (64). Once that I disabled the hyper-threading (ending with just 2*18 below the limit), then the boot process proceed without problems. 2*18 (ok) < 64 < 2*2*18 (not ok) You were Ok with yours dual 14 core: 2*2*14 < 64. It would be Ok also with dual 16 cores: 2*2*16 = 64 For everything that has more than dual 16 core it would become counterproductive. It would be nice if someone figured (or would figure( out a workaround.

Do you think that is possible that this problem is caused because there are 'too many cores' and this is causing the fault? Like limitation in ACPI definition? Any imperfect suggestions? Thanks in advance!

BIOS wrong meaning that I have wrong bios configuration, or just that bios version is wrong? Do you have a copy of the bios? I did reset the nvram, I load the optimized bios values, and still getting the kernel panic ... I also did also CSM disabled serial disabled EHCI Handoff Enable Above 4G decoding Enable and still no improvement ... I am adding the image capture of the bios version, just to clarify the bios information. bios_ver_capture.zip

Thanks for looking into this! I have the following components installed on the board (ZX-DU99D4 V1.11? - 2x E5-2699 v3 - MSI VGA Graphic Cards RX 580 ARMOR 8G OC - 8x Samsung M393A4K40BB1-CRC 32GB DDR4-2400 LP ECC Reg Server Memory I booted win10 and ubuntu20.04. I will tinker with the settings and I will let you know.

Hello greecedrummer Thanks for your EFI! I used it and I get the a hanging problem (kernel trap), see the image attached halt_IMG_5029.zip Is something that I need to do? Like bios settings ... Thanks in advance!