[SUCCESS] AsRock Z68 Extreme3 Gen3, i5-2500K, GTX 660 Ti with Mavericks 10.9.3

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Feb 12, 2013
AsRock Z68 Extreme3 Gen3
i5 2500K
MSI GTX 660 Ti 2GB Power Edition
  1. MacBook Pro
Mobile Phone
  1. Android
This was my first build, so i had to install everything from scratch… After breaking up a long time relationship with Windows 7.


Mobo: AsRock Z68 Extreme3 Gen3
CPU: Intel i5-2500K Overclock @ 4.5Ghz.
CPU Cooler: Corsair H100i
GPU: MSI GTX 660 Ti Power Edition 2GB
RAM: G.Skill Ripjaws 8GB (2X4GB)
SSD: Samsung 840 250GB
HDD: 2x Western Digital Caviar Blue 1TB
PSU: Corsair TX650 V2
Case: Corsair Carbide 500R
Monitor: Asus MX279H
Wifi Card: TP-LINK TLWDN4800

After reading several threads and getting the right tools for OS X 10.6, i got it to work with these tools:

- Downloaded the latest iBoot, MultiBeast for Snow Leopard and Mac OS X 10.6.8 Update Combo v1.1
- Changed the UEFI BIOS (AHCI, Enable Onboard Graphics).

- Inserted the iBoot CD, later loaded with the Mac OS X 10.6 Snow Leopard DVD, after finishing the installation i updated with Combo and use MultiBeast.
- After first reboot, downloaded UpdateHelper.
- In the second reboot, i was able to download OS X Mavericks from App Store.

Once i had everything setup, it was easy to create a bootable installer with UniBeast and MultiBeast for Mavericks using the 10.9 Installation guide. It didn’t require any boot flags before or after installation.


The only 2 problems that i had, was login to iMessage and getting HDMI Sound Output from my GTX. But after reading the “How to fix iMessage Part 1 and Part 2” from jaymonkey and downloading a supplemental HDMIAudio kernel extension, it really got fix :

Installing HDMIAudio:
- Double click on the DMG, and mount it
- Open terminal, and enter this command: cd/Volumes/HDMIAudio
- Press Return, then enter key: ./
- Run administrator password, then press enter.
- A warning message will show (Unidentified Developer), it's safe to ignore
- Reboot after installation.

Just finished:

- Activating Trim using Trim Enabler from the App Store.
- Back up from Time Machine
- Updating from 10.9.3 to 10.9.4 (App Store)
- Activating Airdrop
- Modding About This Mac (Case & Build version)


Nov 26, 2014
Classic Mac
Mobile Phone
Hey ComCody, did you have a patched bios 2.30 to get that work or just use nullpowermanagement alone? I have the same mobo with a core i7 (sandy Bridge) but with an ati 7970 card. Do you know if I have to take out my card and boot it up with onboard graphics? I also have the Yosemite usb ready to go. Can I just follow your MultiBeast setup or do you know if there are one out there that are recommended for me? By the way, I am doing a fresh install on an SSD.
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