Vielleicht hats was mit Lions Darkwake zu tun.
Chimera-Bootloader Option:
Zitatdarkwake=0
The DarkWake feature in Mac OS X Lion allows you to wake up certain parts of your Mac from sleep, while leaving other parts in sleep mode. Unfortunately, this feature often messes up sleep on Hackintoshes. Enter this bootflag to turn it off (enter darkwake=1 to turn it on, if turning it off doesn't do the trick). Additionally, if your verbose bootup is freezing at a bunch of commands that mention "SleepEnabler.kext", entering darkwake=0 should be able to turn SleepEnabler.kext off. (Once you boot into OS X, be sure to remove SleepEnabler.kext completely by deleting it from either /Extra/Extensions or /System/Library/Extensions in your hard drive.)