Dual CPU - OSX installation challenges

Hello!

Anyone have a working guide on how to do install Lion(10.7.x) on a dual cpu system? Even interested in guides describing installation of Snow Leo(10.6.x) also on dual cpu systems. My system is a Dell Precision T7500, 12GB Ram, Dual nVidia Quadro FX 4800 and Dual Intel Xeons W5580 @ 3.2Ghz (16 threads), MotherBoard Bios: A12.

Anyone had any success with this? I´m trying to install Lion, but can´t seem to get passed KP during initial boot. Tested most different bootloaders, etc....any suggestions or complete guides on how to do this? I´ve installed a lot of different single cpu systems, but no luck with dual cpu ones.

Cheers, //Zztony