dell-optiplex-9020m, Dortania Opencore

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CPU - specifications

Intel Core vPro i5-4590T

Intel Graphics 4600

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Mojave

Catalina

Big Sur

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GenSMBIOS

https://github.com/corpnewt/GenSMBIOS

Type: iMac18,3

Serial: C02X3MY2J1GJ

Board Serial: C028291014NJ0PGUE

SmUUID: AE5B3EB6-9214-4F72-AECC-6FCA1703595C

Apple ROM: 70F087B95497

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Fix

AppleALC - Audio

layout-id = 3

appleALC - macOS 11.2.x

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macOS 11.3.x - 12 - up

USB does not work.

I recommend the version macOS 10.14 Mojave

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Download image recovery

Mojave(10.14)

python macrecovery.py -b Mac-7BA5B2DFE22DDD8C -m 00000000000KXPG00 download

Catalina(10.15)

python macrecovery.py -b Mac-00BE6ED71E35EB86 -m 00000000000000000 download

Big Sur(11)

python macrecovery.py -b Mac-E43C1C25D4880AD6 -m 00000000000000000 download

Monterey (12)

python macrecovery.py -b Mac-E43C1C25D4880AD6 -m 00000000000000000 download

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Create Folder

com.apple.recovery.boot

Structure

EFI

com.apple.recovery.boot - input dmg recovery