Dell Precision 7520

Dell Precision 7520

戴尔DELL 2022-07-03


Before you give this EFI a try, make sure you read this!

This repo includes an OpenCore EFI for the Dell Precision 7520 (i7-6820HQ, Skylake).

Testing on:

Model Dell Precision 7520
CPU Intel Core i7-6820HQ
iGPU Intel HD Graphics 530
dGPU NVIDIA Quadro M2200 (disabled)
WiFi Intel® Dual Band-Wireless-AC 8265
macOS Monterey

What works?

  • Audio
  • Battery readout
  • Boot
  • Brightness Control
  • Ethernet
  • GPU acceleration
  • Keyboard + Trackpad
  • Power Management
  • SD card reader
  • WiFi
  • Bluetooth
  • Sleep
  • USB
  • Webcam
  • Speaker
  • Trackpoint

What doesn’t work?

  • dGPU (no support past High Sierra)
  • headphone jack
  • Thunderbolt (untested)

BIOS settings

  • Virtualization Support: Enabled
  • SATA Mode: AHCI
  • Thunderbolt: Disabled
  • TPM: Disabled
  • Legacy Mode: Disabled

How to install

Download this repo and place the EFI folder into your internal drive’s EFI partition… That’s it.

How to Install macOS Monterey

There are two ways you can make a USB installer:

  1. Have a working install of macOS, download the Installer from the App Store, then make a bootable Installer with createinstallmedia by using this command in Terminal sudo /Applications/Install\ macOS\ --volume /Volumes/MyVolume

  2. If you are using Windows, use from the offical OpenCore release package.

After you have created a bootable Installer, copy the EFI folder to the EFI partition of the installer drive and install as usual (GUID Partiton Map; APFS). After the installation, mount the EFI partition of the installed OS and copy the EFI folder to its partition.

Running Big Sur and Catalina

If you want to run Big Sur/Catalina, you have to replace AirportItlwm with the one appropiate to the version of macOS.