Hibernate on idle instead of sleep

Question

I have a Gigabyte GA-990FXA-UD5 (rev. 3.0) motherboard which for an unknown reason refuses to sleep; it'll will still be clearly powered on and unresponsive and no signal is sent to any screens.

How can I hibernate Windows 7 after X number of idle hours?

Answer 1

*For screenshots of step by steps, take a look at reference links

To enable hibernate in windows 7:

1. Click start and type: power options in search box and hit enter
2. Select Change when the computer sleeps and click Change advanced power settings
3. In Power options window, expand Allow hybrid sleep and switch to off and click ok

Reference

How to automate hibernate in windows 7:

1. open control panel
2. click power options
3. select plan you are using and click on Change Plan settings
4. In editing mode of power plan, click Change Advanced Power setting
5. In the power options settings window, expand sleep option and select Hibernate after
   6. Choose the amount of minutes to wait before device hibernates

Reference