Thanks bro this kext setting all set in my MOBO DX58SO
My sounds come to life with this voodoo.kext
The working Ethernet driver for the Intel DX58SO motherboard is the Intel82566MM.Kext - THIS WORKS...... perfectly

My system specs:
Intel DX58SO Motherboard
Intel Core i7 920
2 x 2GB Kingston DDR3-1067 MHz
Intel SATA2 Hard Drive
LG Sata DVD Drive
GEForce 8800 GTS 512MB

on Mac OSX Snow Leopard 10.6.3

Thanks

tilungman