HP EliteDesk 800 G5 Mini

HP EliteDesk 800 G5 Mini

惠普HP 2021-02-03


Here a the files and guides I used for the installation of macOS Catalina on HP EliteDesk 800 G5 Desktop Mini


Product Name : HP EliteDesk 800 G5 Mini / HP EliteDesk 800 G5 Desktop Mini

Product N° 7YX38PA

  • CPU : Intel Core i5-9500T 2.2 GHz (boost to 3.7 GHz)
  • GPU : Intel Graphics UHD630 (Dual DisplayPort, additional DisplayPort)
  • Memory : 2 Slots DDR4-2400
  • Storage : PCIe NVMe 256 GB, PCI-E Gen3 x 4, Turbo Drive G2 Toshiba KXG50ZNV256G
  • Ethernet : Intel I219LM Gigabit Network Connection LOM
  • Wireless LAN : Intel 7265 802.11ac 2×2 Wi-Fi with Bluetooth M.2 Combo Card
  • Audio : Conexant CX20632 (Internal Speaker, 2 audio out front ports)

Known Issues

  • Intel WiFi does not work, but Bluetooth can be made to work with a kext


This guide isn’t a Vanilla install guide since I couldn’t get the BCM94352Z to work with kexts installed on the EFI partition For a Vanilla install, simply skip the Wireless LAN part and use a Wifi-Bluetooth USB Key instead

BIOS Settings

  • Disable Fast Boot
  • Enable USB boot
  • UEFI Boot order, make sure your USB device is first to boot
  • Secure Boot : Legacy Support Disable and Secure Boot Disable
  • Disable : Virtualization Technology for Directed I/O (VTd)
  • Enable : M.2 SSD (if you use a NVMe SSD)
  • Uncheck M.2 WLAN/BT (if you don’t have a compatible M.2 Combo Card)
  • Disable Wake on lan
  • Set Video Memory to 64 MB


Create a USB Key with Catalina following the Dortaina OpenCore guide

Post Installation

Add OpenCore to Boot disk

The Dortania Post-Install guide demonstrates how to install OpenCore to the boot drive

Add kexts and ssdt patches

Copy the EFI folder on your Installation key on the EFI of your Add the following kext in /EFI/OC/Kexts

Post-install USBMap can be used to map the actual USB ports on the system, one is included in this repo

The Dortania install guide details how to create SSDT patches. The following patches were needed on the EliteDesk 800 G5



ACPI Section

Add the following DSDT Patches

  • RTC Fix to stop POST error
    • Find : <47017000 70000108>
    • Replace with : <47017000 70000102>

Graphics Section

  • Inject Intel
  • ig-platform-id : 07009B3E

SMBIOS use iMac19,1 (2019)

If you use the attached config.plist generate a new Serial Number and a new SmUUID

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