UPDATE 10.8.x – a patched AppleRTC kext seems to be in /Extra/Extensions folder by default with Kakewalk 4.5
use the following SleepEnabler (thanks to this post on kakewalk)
perform a maintenance on E/E and done!
getting a EP45-UD3LR motherboard run OS X is easy using kakewalk. Getting it to sleep (and resume without erasing CMOS) is a little more tricky
luckily the guys at kakewalk.se can help
Add/Edit the following line to your (org.chameleon.)Boot.plist in the /Extra folder:
Download the below kexts (SleepEnabler.kext & AppleRTC.kext) and add them to your E/E folder:
Run kext utility and reboot.
Put hack to sleep
Wait for fans to completely spin down
Use keyboard or power button to wake
If that all went well and you didn’t get your CMOS reset while rebooting then you have working sleep :)