i'm trying to get a dual Xeon mobo working. So far, i cannot get pass "End RandomSeed" boot failure. i've tried many combinations of files (AptioMemoryFix.efi as well as Osxaptiofix2drv-free2000.efi), along with various kexts and both the latest OpenCore (if OC is not verbose, the Apple logo appears but no progress bar) and Clover bootloaders (and internally various patches or no patches)–––all without success.
Hardware are: BT/Wifi card, Vega 56 and Gigabyte TB3 (Titan Ridge) cards. Mobo is Gigabyte C621 WD12 with Intel Xeon 6230 Gold CPU. I'm testing with just one CPU with accompanying 2 x 32GB 2933MHz ECC DDR4.
(BIOS is finicky and I cannot turn off CSM; nor is MSR 0xE2, CFG Lock, adjustable and I don't know if it is enabled or disabled. I've written GB tech support about both issues.)
I'm hoping a proper DSDT file will help. Attached is one generated in Win 10 (Win 10 64-bit works perfectly).
Thanks for any help or suggestions!
DSDT-xeon.aml.zip