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Motherboard
I didn't read
CPU
the RULES
Graphics
so ignore me
Mac
  1. MacBook Air
Classic Mac
  1. Power Mac
Mobile Phone
  1. iOS
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

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!
 
Last edited by a moderator:
I had success with following this guide. Onto the Optiplex 990 DT model. Previously had Ubuntu 16.04, within which I gotten a Buffalo Wireless - G PCI card to work successfully. But sadly not within H. Sierra. While linux was running, the video card didn't report very specifically what kind it was except to say that it was a 5/6/7XXX radeon. Knowing that ATi made radeon, I used the ATi drivers. Only one non-proportional resolution is available sadly, and no sound yet. But hey, I'm happy it's running.

If I'm lucky I can:

• Find a way to get the Buffalo Wireless - G PCI card to work
• Find a way to get the sound to work


and...

• Find a way to have a choice of booting into Mac OS or Linux OS. Hopefully.

Thank you for this guide!

PS, if anyone can point me in the right direction for the above wish list, drop me a line, and thank you in advance!
PPS: It was H. Sierra 10.13.2 version.
 
Last edited:
Update: The onboard speaker doesn't work... But the rear headphone jack works!
 
@mikemac27, please update your profile (personal details) with your Motherboard, CPU and Graphics Card.
If you have a prebuilt computer enter make and model instead of motherboard (Mobo).
The Rules said:
Profiles need to contain at least your primary system to assist others with helping you.
 
I was wondering if you have added any 3rd party cards to enable usb 3.0 on the Optiplex 990.
 
(SNIP)the video card didn't report very specifically what kind it was except to say that it was a 5/6/7XXX radeon. Knowing that ATi made radeon, I used the ATi drivers. (SNIP)

The display quality is so-so, noticeable artifacts within Safari. The transparency overlay effects when using the "search within a page" function just turns Safari pages black except upon the search's found instances. As well as blocky Tab titles.

Since this is my 1st build, and not having seen any others in person, I wonder if others have experienced this.

On that topic of video cards, can any comment on the cards that Author mentions?

Compatible Budget graphic cards:
Nvidia GT220
Nvidia GT240
Nvidia GT420
Nvidia GT430
Nvidia GT440
Nvidia GT610
Nvidia GT630

Thank you kindly for sharing.

Ps,

The Optiplex 990 DT is a low profile style of Case Chassis, so my search for a better card will have to be a Low Profile model.
 
could you please upload the EFI for a test, and I have tried to install on Dell Precision T5810, and it gives me the error of 'dose printif work?'
 
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