Are you using Internal PLL Overvolt? There's a bug with the current BIOS that prevents sleep from working properly.
XtremeSystems Forums - View Single Post - ***Official*** ASUS P67/H67 BIOS Updates Quote:
|
7. If the power saving features not working after updating to BIOS 1253, please verify the power profile has been set to balanced mode instead of Performance Mode. As long as EIST is not disabled or CPU Voltage is to manual mode (use offset), the power saving modes will continue to operate normally. In addition, if you have enabled Internal PLL Voltage, then resume/hibernate will not work correctly until Intel has an update (or this might end up being standard operating mode). |