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In this thread, I have fully documented the installation of macOS Catalina on my HP EliteDesk 800 G4 Mini. It is a PERFECT HackMini8,1 and is running very well for me without any issues. I hope this documentation helps you to install macOS on your hack. Please leave feedback if you think there is anything I can improve and let me know if you have any questions.
This is my first "modern" hack supporting UEFI and my first hack using Clover "on-the-fly" patches. My previous hacks
Laptop: Thinkpad T61 / Nvidia NVS 140m Laptop: Dell Latitude E6410 / Nvidia G3100m Desktop: Gigabyte G31 / GeForce 9600 Desktop: Biostar TH55HD / Sapphire Pulse RX580 (Google "Catalina Biostar TH55HD" and look for user name deeveedee)
are all perfectly running Catalina and I patched them all "manually" - all DSDT patches applied with MaciSL with virtually no Clover on-the-fly patching and all booted Legacy Clover. This UEFI hack was MUCH easier and took about 20 hours vs. a combined hundreds of hours for the old hacks. I wanted a hack that was a little more future proof and I think this is it. I hope you enjoy this as much as I am enjoying it. It is a perfect MacMini8,1.
My system specs
HP EliteDesk 800 G4 Mini (I7-8700T / UHD 630 / Q370 Chipset / 32GB DDR4 RAM) 3 x DP Ports (connected to monitors using DP -> DVI adapters) 6 x USB 3.1 1 x USB Type-C 3.1 2 x NVMe SSD (M.2 PCIe x4 2280/2230 combo ports) 1 x SATA6 SSD 1 x Intel Ethernet RJ-45 Conexant CX20632 Audio Codec Unsupported M.2 PCIe x1 2230 Intel Wi-Fi. A possible solution is here, but I am NOT offering any support for this.
Important: You MUST BE LOGGED-IN to download attachments from this forum
See macOS installation steps here See Known Issues here for additional installation steps that may not yet be included in my attached config files See CLOVER (UEFI) installation later in this first post
See BIOS configuration in attached BIOS configuration PDF document
See EFI and /L/E kexts in attached EliteDesk.zip archive See how I developed my installation methodology here See references here See instructions here for installing two M.2 2280 NVMe SSDs and one SATA HD / SSD
What is not working
What is not tested
USB c 3.1 port (I have partially tested the USB 3 functionality of the port and it seems to be working fine with the USBPorts.kext in the attached EliteDesk800.zip archive) Wi-Fi / Bluetooth (intentional since I have not yet replaced my Intel card). A possible solution is here, but I am not offering any support for this.
What is working
Everything not mentioned above Sleep / Wake Multiple displays with IGPU graphics acceleration, hot pluggable display ports and DP->DVI adapters USB 3.1 ports Audio (internal speaker and headphone jack) Ethernet
Known Issues and their solutions - see here
BIOS Version / Configuration
Version: 02.11.01 Rev.A or 02.12.00 Rev.A See attached BIOS configuration in PDF document "HP EliteDesk 800 G4 Mini BIOS Configuration.pdf" Intel ME must be enabled for proper sleep / wake of UHD 630
Clover for UEFI booting only Install Clover in the ESP UEFI Drivers Recommended drivers DataHubDxe FSInject SMCHelper File System drivers ApfsDriverLoader VBoxHfs Memory fix drivers OcQuirks (replaces AptioMemoryFix) Additional drivers NvmExpressDxe Install RC scripts on target volume Themes Choose your desired theme Install Clover Preference Pane (option not available when installing on USB thumb drive)
UHD 630 Framebuffer Patching
See here and here to understand my graphics properties for use with WhateverGreen.kext Read this to see my attempt at graphics patching without WhateverGreen.kext (WEG) to get a better understanding of what WEG is doing
Catalina 10.15.7 Clover (UEFI) r5122 Lilu.kext 1.4.8 WhateverGreen.kext 1.4.3 AppleALC.kext 1.5.3 IntelMausi.kext 1.0.4 (acidanthera version) NVMeFix.kext 1.0.4 EFIChecikDisabler.kext 0.5
Credits To be provided
HP EliteDesk 800 G4 Mini BIOS Configuration.pdf
EliteDesk 800 G4 Mini - Rev 1.3.zip
By Dmitry R
Hi guys, stuck on problem of switching on my TV back from off state. I have asus H270f strix mobo with i7-6700K CPU (HD530), Clover 4722 and latest whatevergreen and lilu. I installed 10.14.1 on it and it works fine. the m/b has dp, hdmi and dvi on board. I'm using dp + dp<->hdmi adapter to connect my mac to 4k tv which I'm using as a primary monitor. This connection supports 4k@60hz and I'm happy with the detailed and sharp picture I see on my tv. The problem is that when I get out for a while then, when I come back, I see my tv turned off by timeout and when I turn it back on, I see only the black screen. The computer works, I prevented it from going to sleep. To see the picture again on my tv I have to go to another computer, then, using screen sharing, I have to connect to my computer and then I have to choose couple of times different refresh rates in System Preferences -> Displays. After that I go back to my tv, see the picture and can continue to work. I made a edid report for my tv. may be somebody knows how to use this data to make my mac to wake up the tv correct way?
Thank you, Dmitry
So apple has presented a new and updated mac mini a few days ago, and the great news seems to be the use of desktop processors in it, in fact, all the specs seems to match a typical desktop socket 1151 v2 coffeelake system without a dedicated gpu, so i am wondering if the smbios of this machine could be our new smbios of preference for coffeelake desktop machines. So i have created this new topic to discuss about it. Of course we will have to wait to do tests using the first public version of mac os which integrates this smbios, because when every new mac is released it's smbios is available initialy just in a purpose made mac os build and then it's added for all the os builds in the following releases.
So what do you think about the possibility of using this new smbios for desktop coffeelake machines instead of the imac 18.3/18.2 ones?
Yesterday I decided to install Mojave on my hack and installed it, but in the process I ran into a problem - the monitor image flickers. I tried everything I could - different Properties in Whatevergreen, I tried without it, deleted DSDT, SSDT, which I did under the system, changed SMBIOS (iMac18,1, iMacPro1,1, iMac18,3, MacBookPro 15,2) and etc., but unfortunately nothing can fix the situation.
The monitor is connected via DisplayPort to the 4k monitor LG 31MU97Z-B. If you connect the monitor to the system via HDMI, then the monitor works stably, but the PICTURE is PICTED in purple.
Following the links below, I posted a video where the monitor's behavior was recorded:
HDMI port issue
Before moving to Mojave, I used macOS High Sierra 10.13.6 (17G2208), where everything worked like a clock.
Archive with Clover folder also attached to the post.
Help, please, in solving the problem, otherwise I have this working tool, and it's simply unrealistic to work for him.