- Fujitsu Computer Systems Corporation User Guide

- Power Management

• Selecting Sleep from the Windows Shut Down menu.

• Timing out from lack of activity.

• Allowing the battery to reach the Dead Battery Warning condition.

Your notebook’s system memory typically stores the file on which you are working, open application

information, and any other data required to support operations in progress. When you resume operation

from Sleep mode, your notebook will return to the point where it left off. You must use the

Suspend/Resume button to resume operation, and there must be an adequate power source available, or

your notebook will not resume.

Hibernation (Save-to-Disk) Feature

The Hibernation feature saves the contents of your notebook’s system memory to the hard drive as a part

of the Suspend/Resume mode. You can enable or disable this feature.

• IF RUNNING YOUR NOTEBOOK ON BATTERY POWER, BE AWARE THAT THE BATTERY CONTINUES TO DISCHARGE

WHILE YOUR NOTEBOOK IS IN SLEEP MODE, THOUGH NOT AS FAST AS WHEN FULLY OPERATIONAL.

• DISABLING THE SUSPEND/RESUME BUTTON PREVENTS IT FROM BEING USED TO PUT THE NOTEBOOK INTO

SLEEP OR HIBERNATION (SAVE-TO-DISK) MODE. THE BUTTON RESUME FUNCTION CAN’T BE DISABLED.

• THE SLEEP OR HIBERNATION (SAVE-TO-DISK) MODE SHOULD NOT BE USED WITH CERTAIN PC CARDS. CHECK

YOUR PC CARD DOCUMENTATION FOR MORE INFORMATION. WHEN PC CARDS OR EXTERNAL DEVICES ARE IN

USE, HIBERNATION (SAVE-TO-DISK) MODE CANNOT RETURN TO THE EXACT STATE PRIOR TO SUSPENSION,

BECAUSE ALL OF THE PERIPHERAL DEVICES WILL BE RE-INITIALIZED WHEN THE SYSTEM RESTARTS.

• IF YOUR NOTEBOOK IS ACTIVELY ACCESSING INFORMATION WHEN YOU ENTER THE SLEEP OR HIBERNATION

(SAVE-TO-DISK) MODE, CHANGES TO OPEN FILES ARE NOT LOST. THE FILES ARE LEFT OPEN AND MEMORY IS

KEPT ACTIVE DURING SLEEP MODE OR THE MEMORY IS TRANSFERRED TO THE INTERNAL HARD DRIVE DURING

HIBERNATION MODE.

• THE MAIN ADVANTAGE OF USING HIBERNATION (SAVE-TO-DISK) IS THAT POWER IS NOT REQUIRED TO MAINTAIN

YOUR DATA. THIS IS PARTICULARLY IMPORTANT IF YOU WILL BE LEAVING YOUR NOTEBOOK IN A SUSPENDED

STATE FOR A PROLONGED PERIOD OF TIME. THE DRAWBACK OF USING HIBERNATION MODE IS THAT IT

LENGTHENS THE POWER DOWN AND POWER UP SEQUENCES AND RESETS PERIPHERAL DEVICES.