HP ProBook 4230s Notebook PC - Manual (Page 44)

Setting power options
Using power-saving states
The computer has two power-saving states enabled at the factory: Suspend and Hibernation.
When Suspend is initiated, the power light blinks and the screen clears. Your work is saved to
memory, letting you exit the Suspend state faster than exiting Hibernation. If the computer is in the
Suspend state for an extended period or if the battery reaches a critical battery level while in the
Suspend state, the computer initiates Hibernation.
When Hibernation is initiated, your work is saved to a hibernation file on the hard drive and the
computer turns off.
CAUTION: To prevent possible audio and video degradation, loss of audio or video playback
functionality, or loss of information, do not initiate Suspend or Hibernation while reading from or
writing to a disc or an external media card.
NOTE: You cannot initiate any type of networking connection or perform any computer functions
while the computer is in the Suspend state or in Hibernation.
Initiating and exiting Suspend
The system is set at the factory to initiate Suspend after a period of inactivity when running on battery
power or on external power.
Power settings and timeouts can be changed using Power Management in Control Center.
With the computer on, you can initiate Suspend in any of the following ways:
● Briefly press the power button.
● Close the display.
NOTE: This only works when the computer is running on battery power.
● Select Computer > Shutdown > Suspend.
● Click the Power icon, located on the far right of the taskbar, and then click Suspend.
To exit Suspend:
▲ Briefly press the power button.
When the computer exits Suspend, the power light turns on and your work returns to the screen
where you stopped working.
34 Chapter 6 Power management