Sorry for the loong post. Hopefully it will help someone with a temporary solution to start additional research.
Admins/Devs :
We still would like a DSDT fix, if that is possible.
I got Lion 10.7.3 to work with this board [Asrock Z68-MiniITX] + Zotac Nvidia 520 Graphics [single slot card]
. The installation can be done without the graphics card [I have an Intel i5-2400 processor with HD2000 Integrated Graphics
]. But you need an additional [working in OSX] graphics card to boot normally and get good resolution.
I used the following Boot parameter combinations :
With Intel HD2000 only [UEFI set to default to Onboard graphics] :
USBBusFix=Yes EHCIaquire=Yes [Optionally you can add '
UHCIreset=Yes' if u still get stuck]
With the Nvidia 520 card [UEFI set to default to PCI Graphics] :
USBBusFix=Yes EHCIaquire=Yes PCIRootUID=0 GraphicsEnabler=Yes
[PCIRootUID=0 was mentioned in one of the Posts on the web, donno where. It is a fix for booting into a regular welcome screen to fix the slow as hell welcome screen or the white screen with a
]
I optionally chose to boot in verbose [Boot param
-v] mode to be sure to know where the system stalled [if it did]. So far almost all of the time, the above Boot parameters worked.
Post install, you can boot using the
Intel HD2000 card only in safe mode [Boot Param
-x] with horrid graphics,
if at all that works.
Post install setup [Multibeast], I installed
Sound > VoodooHDA ver. xx.7.2 [the highest version caused kernel panics]
Disk > IOAHCIBlockStorageInjector
Miscellaneous > ElliotForceLegacyRTC, Ev0erboot, FakeSMC, NullCPUPowerManagement, USB 3.0 NEC/Renesas [donno if it worked]
OSx86 Software > KextUtility, Show All Files
Do not install the FakeSMC Plugins, as they resulted in kernel panics.
Note : Everytime I installed,
Ethernet worked OOB 
[from a win7 install, I found it was a Realtek card. Even tho multibeast had the option, I DID NOT check/install any network devices thru it, b'coz it was working already]
Other Notes : I have a Multi boot setup for Lion and Win7 on a GUID partition to utilize EFI booting, but so far I've hit a brick wall
on loading a Boot loader to the EFI partition. Everytime I install Chimera/Chameleon it creates a hybrid GPT/MBR which would load OSX but not Win7 [coz there is no Win7 MBR bootloader installed, being on a GPT disk
]. Right now I boot to win7 using the UEFI shell and OSX via the Uniboot USB drive.
If anyone does decide to use MBR over GPT [enable the 'Boot from Legacy ROM' option in UEFI Bios setup], I don't think you should jump any hoops, other than following ur regular procedure. After installing Chameleon/Chimera, don't forget to edit the
com.chameleon.boot.plist with the previously mentioned boot parameters.
If anyone has a solution to install any bootloader to the EFI partition so that UEFI can default boot into it, with working options to boot Lion and Win7, please help me out.
My Config :
Mobo : Asrock Z68 Mini-ITX/HT LGA 1155
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157268
Processor : Intel Core i5-2400
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115074
Graphics : Zotac ZT-50603-10L GeForce 520
http://www.newegg.com/Product/Product.aspx?Item=N82E16814500208
RAM : Corsiar Vengence 4GBx2
http://www.newegg.com/Product/Product.aspx?Item=N82E16820233186
Optical Disc : LG BluRay Burner
http://www.newegg.com/Product/Product.aspx?Item=N82E16827136239
Display : Samsung PN51D550 TV [Yeah, I did
]
http://www.amazon.com/Samsung-PN51D550-51-Inch-1080p-Plasma/dp/B004MN8HYW/ref=sr_1_1?ie=UTF8&qid=1329004681&sr=8-1
