Re: Windows 7 hibernates but wont come back out of it.
I don't enough about the way ACPI works to know for sure. Maybe you could disable it in the bios to see if it makes any difference.
What they normally say about Safe Mode is that only essential drivers and services are loaded. If your system works better that way it would have to follow that some device or service might be causing a problem. Msconfig.exe has a couple of ways to start your system by eliminating only partially what is started.
On the General tab there are options you can select. You can try a Diagnostic startup which loads only what might seem to be the same things loaded in Safe mode. Next you can go to Selective Startup and choose either load system services or Load Startup items. If one works and the other doesn't then you have narrowed down the problem.
Some folks also recommend using the Services tab and check "Hide all Microsoft services" then choose disable all, which should leave only the Microsoft services starting.
After each step, you might try the Powercfg -energy utility again to see if it completes.
Do you see any errors or warnings in the Event Viewer?
Operating System Win 7 x64
Computer Type Homebuilt
OS Service Pack 2
DirectX Version 11
CPU Type and Speed i7 3770K
Motherboard Chipset Asus P8Z77-V Pro
System Memory Type 16 GB Kingston
Video Card Type and Speed Nvidia GTX 680 (2)
Computer Monitor LG 27" (3)
Hard Drive Kingston 240 SSD
Optical Drives LG WH12LS30 Blu-
Modem-Router Type Linksys E3000
Network Adapter Intel Gigabit
Anti-virus Software MSE
Computer Skill Level Average Ability
Windows Experience Index 7.7