HP ProDesk 600 G1 DM Tiny Opencore 0.6.5 Catalina 10.15.7 Success!

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https://preview.redd.it/l5x559ovysd61.png?width=1920&format=png&auto=webp&s=2598a0b4d74efa20d096fd82b84216ff218a009e

After a couple of weeks of tinkering with the config.plist, ACPI, kexts, BIOS settings and referencing existing build info found on the net, I have successfully installed and configured macOS Catalina on my HP ProDesk 600 G1 DM Tiny! It is a Haswell build and everything I tested is working, including sleep/wake.

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• CPU - Intel i3 4160T
• Display - Intel HD Graphics 4400
• MB - Proprietary HP
• WIFI - not tested as I don't use it
• Bluetooth - working
• Ethernet - Intel - working

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It is critical to have ME enabled in the BIOS as not doing so will break sleep/wake. The only ACPI aml files I used were PLUG and EC. For kexts, I used: FakeSMC, Lilu, Whatevergreen, AppleALC, CPUFriend and Intel Mausi. Haswells are super simple to configure compared to other generations.

Hope this helps someone and if you have any questions, post a comment and I will do my best to reply quickly.