Lenovo 3000 C100 0761 Supplementary Manual page 24

Solving computer problems
Problem:
Your computer does not enter standby or hibernation mode.
Solution:
Problem:
The Fn+F12 key combination does not cause the computer to enter
hibernation mode.
Solution:
16
Lenovo 3000 C100 Service and Troubleshooting Guide
→ If the system does not return from standby mode, it may have
entered standby or hibernation mode automatically because the battery
is depleted. Check the standby indicator.
– If the standby indicator is blinking, your computer is in standby
mode. Connect the ac adapter to the computer; then press Fn.
– If the standby indicator is off, your computer is in hibernation mode
or power-off state. Connect the ac adapter to the computer; then
press power button to resume operation.
If the system still does not return from standby mode, your system
may stop responding and you cannot turn off the computer. In this
case, you need to reset the computer. If you have not saved your data,
it may be lost. To reset the computer, press and hold the power button
for 4 seconds or more. If the system is still not reset, remove the ac
adapter and the battery.
→ Check whether any option has been selected that would disable your
computer from entering standby or hibernation mode.
→ The computer cannot enter hibernation mode:
– If you are using one of the communication PC Cards. To enter
hibernation mode, stop the communication program, and then
remove the PC Card or disable the PC Card slot. Click the Safely
Remove Hardware icon in the taskbar.
– If the hibernation mode is not enabled. To enable it, do as follows:
1. Click Start.
2. Click Control Panel; then click Performance and maintenance.
3. Click Power options. Power options properties window opens; click
the Hibernate tab.
4. Select the Enable hibernation checkbox.
5. Click OK.
Note: If you want to be able to enter hibernation mode by pressing
Fn+F12, you need to install Lenovo PM driver.