Alright, so here's what I've done so far, starting from the very beginning. Maybe this will help you see where I've went wrong. Also, here's some more info about my complete setup, which I guess might be important.
- Asus Gryphon Z87 Tuf
- i7-4770K
- 2X Samsung Pro 840 256GB SSD
- 2X Barracuda 3TB HD
In BIOS settings:
- Entered advanced tab, System Agent Config, Graphics Config, set Primary Display to iGPU.
- Set iGPU Memory to 32M.
- Set USB Support to Full Initialization (had to do this so the Unibeast drive would be recognized).
- Made sure that SATA Mode Selection was set to AHCI
Unibeast
- Plugged in the Unibeast USB drive and restarted computer.
- Formatted Samsung Pro SSD to 1 partition, Mac OS X Journaled, GUID Partition.
- Installed Mountain Lion on that drive.
OS X Installation
- Restarted computer with Unibeast drive still attached.
- Booted into Mountain Lion hard drive.
- Installed Mountain Lion on hard drive.
- Downloaded Multibeast.
- Installed ONLY the settings from the screenshot above.
- Shut down computer.
- Removed Unibeast drive.
- Turned on computer.
- Computer boots to BIOS settings instead of booting into Mountain Lion.
Booting into OSX (still with Unibeast though)
- Was using HDMI but message would display "Input not supported" and go black. So I switched to DVI.
- OS X loads just fine. Audio is working and Ethernet is working great!