The perfect DSDT you can make with Auto Patcher by MaLd0n: olarila.com - DSDT Auto-Patcher (app only)
(Mac OS, Windows and Linux)
You have to register for free.
Patches: olarila.com Patches
Scroll down and find the patch for: GA Z68P-DS3
You wil also need Java to do it.
But if it's not working with tonymacx's DSDT I think your problem is something else.
Look in terminal what the wake reason is.
In Lion the terminal commando is:syslog | grep -i "wake reason"Determine Why Your Mac Wakes Up From Sleep
Tell us how you install? Retail? Which extra kexts are you using?
Maybe you need a clean install?
This is a very nice guide made by our friend kyndder http://www.osx86.net...-installer.html
is working 100%. I use a DSDT made with Auto Patcher from MaLd0n
And install method also from him: olarila.com - Lion installation via USB stick using Chameleon
Keep in mind when making a DSDT with Auto Patcher you have to boot without
a DSDT, maybe you will need NullCPUPowerManagement.kext to boot without a KP.
To boot without a DSDT you can use boot flag:
DSDT=No -volarila.com - Patches2