Things you Need:
You need a Graphics card like the GT220 (i use this card) that supports hackintosh, it does not work with the internal graphics card.
You need a Tonymacx86.com account to download Multibeast and UniBeast
You need a Mac that can download and runs the newest version of OSX, to create a Bootable USB (
https://www.tonymacx86.com/threads/...ierra-on-any-supported-intel-based-pc.235474/ ) How to create a bootable USB)
Compatible Budget graphic cards:
Nvidia GT220
Nvidia GT240
Nvidia GT420
Nvidia GT430
Nvidia GT440
Nvidia GT610
Nvidia GT630
Bios Settings:
Restore Bios!!!
System Configuration
SATA Mode: AHCI
Performance
Multicore: ALL
Intel SpeedStep: enabled
C-states: checked
TurboBoast: enabled
Virtualization
Intel Virtualization Technology: enabled
VT for Direct I/O: disabled
Trusted Execution: disabled
Installation Guide:
STEP 1. Install OSX High Sierra
All you need to do is boot from the USB drive and install! For best results, insert the USB in a USB 2.0 port.
1. Turn on the computer
2. Press the hotkey to choose boot device (F12)
3. Choose
USB
4. At Clover boot screen, choose
Boot OS X Install from Install macOS High Sierra
5. For a new installation of macOS, you MUST erase and format the destination drive according to the following steps before continuing.
a. Choose
Disk Utility
b. Click
View and turn on
show all Devices
c. Highlight your target drive for the High Sierra installation in left column.
d. Click
Erase button
e. For
Name: type
High Sierra (You can rename it later)
f. For
Format: choose
APFS (NOT ENCRYPTED!)
g. Click
Erase
h. Close
Disk Utility
7. When the installer asks you where to install, choose
High Sierra
8. Upon completion, the system will automatically restart.
9. Press the hotkey to choose boot device (F12)
10. Choose
USB
11. At the Boot Screen, choose
High Sierra
12. Now select the settings you want. Make sure that the Mac
DONT send informations to Apple.
12. Complete macOS installation. The system will automatically reboot.
STEP 2: Post Installation with MultiBeast (you need MultiBeast, you can download it on the Website)
MultiBeast is an all-in-one post-installation tool designed to enable boot from hard drive, and install support for Audio, Network, and Graphics. The installation is complete, but the drive isn't bootable yet. Boot from the USB again, this time choosing High Sierra.
1. Press the hotkey to choose boot device (F12)
2. Choose
USB
3. At the Boot Screen, choose your new
High Sierra installation.
4. Complete macOS setup
5. Open and run
MultiBeast
6. If this is a fresh installation, click
Quick Start. Select now
Legacy Boot mode.
7. Choose The Audio drivers: (Universal) VoodooHDA v2.8.6
8. There are no Disk drivers we need.
9. At Misc turn on the NullCPUPowerManagement
10. The Network drivers are the AppleIntelE1000e (V3.2.4.2
11. We don’t need USB Drivers.
12. At the point Bootloaders make sure that the Clover Legacy boot mode is on
13. Click
Customize.
14. At the Point Graphics Configuration select your graphics card
15. We don’t need SSDT Options
16. At the Point System Definitions make sure that the iMac 14,2 is selected.
17. Click
Print or
Save to back up your configuration
18. Click
Build then
Install
19. Now easy install the Voodoo_HDA_2.8.5_MAV-2.pkg Driver (you can download it:
https://drive.google.com/file/d/1vAKlkWHV32eIGADEP0Zp1BefZprodNQb/view?usp=sharing )
20. Unplug ALL USB-Drives from your PC
21. Reboot the System
You now have a version of macOS High Sierra on your Dell Optiplex 990!
if you have Questions you can ask me under this Post!