sound on GA EP45-UD3LR running 10.7.4 / 10.8.1

UPDATE for 10.8.x:
seems TonyMac has changed the naming of the kexts in Multibeast:
Drivers & Bootloaders -> Drivers -> Audio -> Realtek ALC8xx -> Without DSDT

only one checkbox to tick (the ‘ALC888 – Legacy’ one for my motherboard – HW revision 1.0)

For 10.7.x
after kakewalking, get Multibeast and install:

and only these! :)
See “sleepEnabler” for how to get it to sleep