macOS  Monterey 12.3 (21E230) on DELL-OptiPlex-3070

This is the 100% working OpenCore EFI for Dell 3070 MFF with i5-9600k on macOS Monterey 12.3 (21E230)

Dell OptiPlex 3070 with i5-9600k on macOS Monterey 12.3 (21E230)

Bootloader version: Opencore 0.7.9 macOS version: macOS Monterey 12.3 (21E230)

Hardware Specification

Component	Specs
CPU	`Intel® Core™ i5-9600k`
RAM	`8gb DDR4 2400MHZ`
HDD	`Samsung EVO 970 NVMe SSD 256GB`
iGPU	`Intel® UHD Graphics 630`
Audio	`Realtek ALC3234`
OS	`macOS Monterey 12.3 (21E230)`
Boot	`OpenCore 0.7.9`

Working:

CPU Turbo Boost & Thermal Throttling Audio GPU All USB Ports LAN Airdrop & Airplay Sleep Internal sound and hdmi

Not working:

Display sleep (thinks it's an external monitor)

BIOS Settings

General → Advanced Boot Options: uncheck System Configuration → SATA Operation: AHCI Secure Boot → Secure Boot Enable: Disabled Intel® Software Guard Extensions™ → Intel® SGX™ Enable: Disabled Power Management → Block Sleep: check Virtualization Support → VT for Direct I/O: uncheck

BIOS Settings via GRUB (Optional)