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ASROCK x79 Extreme 4 + BIGSUR in OC/EFI = lot of problems.

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with this MB (asrock x79 extreme 4) I have about 2 years a perfect Mojave running, all work fine.
but Mojave is just out for many softwares and update , like os more new (min.catalina...) 
SO I decide to try with Bigsur , I have no experience of the new Opencore system,  for mw the " old" clover was better...I read enough guide ebaout OC and you need much experinece to understand something
I can't add a KEXT , because I can't assign to config.plist....all much hard with OC.
SO  I take a X79 efi OC ready and with this my pc install and run BIGSUR...  work good (stable)  BUT with big limits:

NO LAN  (no recognised my old kext...working perfect in mojave)
NO AUDIO  (idem)
2 of the 4 SATA2 ports, have problems... recognised but work bad, like initialize HDD, also are perfect.
Power management not work  , I try with Intel Power Gadget and all is 0 ....

I need help woth another EFI  working with X79 chipset and those chips:

I put here my EFI.

my chipsets

LAN > BCM57781
Audio> ALC898
SATA2 > Intel X79
SATA3> ASM1061 e ASM 1042



Edited by jimiz
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