Hey All,
I seem to have resolved my own situation finally, but I am posting to hopefully save someone else the trouble:
The Hardware:
Custo Mac Pro:
http://www.tonymacx86.com/333-building-customac-buyer-s-guide-february-2013.html
GA-Z77X-UD5H
Geforce GTX 680
I7 3770k
32GB Ram (8x4 corsair Vengeance)
OsX 10.8.1
1) Prep Work: (F12 when booting to access BIOS)
For this this motherboard you first need to update the UEFI since it ships with with out of date firmware. (Get the latest non Bata version)
To do this go here and follow the instructions to download, extract with suffit expander and install via Q-Flash in your BIOS interface.
--->
http://www.tonymacx86.com/175-new-uefi-updates-gigabyte-s-high-end-z77-boards.html
2) Prep Work Part 2:
Go to this link and correct the BIOS settings on your new mother board. (Do after step 1, else it will all be wiped).
http://www.tonymacx86.com/99-quick-guide-configuring-uefi-gigabyte-s-7-series-lga-1155-boards.html
3) UniBeast USB and OsX Install:
make a UniBeast disk and install OsX acording to the great guide here:
UniBeast 10.8 Guide:
http://www.tonymacx86.com/61-unibeast-install-os-x-mountain-lion-any-supported-intel-based-pc.html
4) MultiBeast and initial setup:
Your installation is complete, but it is not bootable. So hold F12 to bring up BIOS, choose the UniBeast USB drive to boot from, then, once in UniBeast interface, choose your OsX install and hit Enter.
SPECIAL NOTE: This is the part where everyone seemed to differ in opinions. It is not very clear which settings to use for which hardware.
The settings posted in the MultiBeast tutorial (screen capture) did not work for me, neither did any other combinations from anyone else in the forums. Here are the items I selected in MultiBeast: (These are the only items i installed, as many of the others caused permanent failure to boot):
1)User DSDT or DSDT- Free Installation
2)Drivers&Bootloaders
>Drivers
>Audio
>Realtek ALC8xx
>WithOUT DSDT
>
ALC898
3) >Disk
>
3rd Party SATA
4)Customization
>Boot Options
>
GraphicsEnabler=No
>System Definitions
>
Mac Pro 3,1
It was suggested to me to install a mac driver for the Video card, but so far the graphics are great.
Ethernet works
ICloud works
Air Drop Works
Sound works
Boots up fast and error free.
Great references for when **** goes wrong:
Series of 6 vids:
http://www.youtube.com/watch?v=SIOJB3EVHaw&feature=share&list=PLEFE54F71ABAFB1DA
One Vid:
https://www.youtube.com/watch?v=IxtxWVj6kOk
and ofcourse this site and forum.
Best of luck!