Fujitsu LifeBook S2210 User Manual

Also see for LifeBook S2210: User guide Bios guide

Contents

30L i f e B o o k S 2 0 0 0 N o t e b o o kPower ManagementYour Fujitsu LifeBook notebook has many options andfeatures for conserving battery power. Some of thesefeatures are automatic and need no user intervention,such as those for the internal modem. However, othersdepend on the parameters you set to best suit your oper-ating conditions, such as those for the display bright-ness. Internal power management for your notebookmay be controlled from settings made in your operatingsystem, pre-bundled power management application, orfrom settings made in BIOS setup utility.Besides the options available for conserving batterypower, there are also some things that you can do toprevent your battery from running down as quickly.For example, you can create an appropriate power savingprofile, put your notebook into Suspend mode when itis not performing an operation, and you can limit theuse of high power devices. As with all mobile, batterypowered computers, there is a trade-off betweenperformance and power savings.POWER/SUSPEND/RESUME BUTTONWhen your LifeBook notebook is active, the Power/Suspend/Resume button can be used to manually putyour notebook into Suspend mode. Push the Power/Suspend/Resume button when your notebook is active,but not actively accessing anything, and immediatelyrelease the button. You will hear two short beeps andyour system will enter Suspend mode. (See figure 2-4 onpage 6 for location)If your LifeBook is suspended, pushing the Power/Suspend/Resume button returns your notebook to activeoperation. You can tell whether the system is Suspendedby looking at the Power indicator. (See figure 2-4 onpage 6) If the indicator is visible and not flashing, yournotebook is fully operational. If the indicator is visibleand flashing, your notebook is in Suspend mode. If theindicator is not visible, the power is off or your notebookis in Hibernation mode. (See Hibernation Feature)SUSPEND MODESuspend or Standby mode in Windows saves thecontents of your LifeBook notebook’s system memoryduring periods of inactivity by maintaining power tocritical parts. This mode will turn off the CPU, thedisplay, the hard drive, and all of the other internalcomponents except those necessary to maintain systemmemory and allow for restarting. Your notebook can beput in Suspend mode by:■ Pressing the Power/Suspend/Resume button whenyour system is turned on.■ Selecting Standby from the Windows Shut Down menu.■ Timing out from lack of activity.■ Allowing the battery to reach the Dead BatteryWarning condition.Your notebook’s system memory typically stores the fileon which you are working, open application informa-tion, and any other data required to support operationsin progress. When you resume operation from Suspendmode, your notebook will return to the point where it leftoff. You must use the Power/Suspend/Resume button toresume operation, and there must be an adequate powersource available, or your notebook will not resume.■ If you are running your LifeBook note-book on battery power, be aware thatthe battery continues to discharge whileyour notebook is in Suspend mode,though not as fast as when fully opera-tional.■ Disabling the Power/Suspend/Resumebutton prevents it from being used toput your LifeBook notebook in Suspendor Hibernation (Save-to-Disk) mode.The resume function of the button can-not be disabled.■ The Suspend or Hibernation (Save-to-Disk) mode should not be used with cer-tain PC Cards. Check your PC Card doc-umentation for more information. WhenPC Cards or external devices are in use,Hibernation (Save-to-Disk) mode cannotreturn to the exact state prior to suspen-sion, because all of the peripheraldevices will be re-initialized when thesystem restarts.■ If your LifeBook notebook is activelyaccessing information when you enterthe Suspend or Hibernation (Save-to-Disk) mode, changes to open files arenot lost. The files are left open andmemory is kept active during Suspendmode or the memory is transferred tothe internal hard drive during Hiberna-tion mode.■ The main advantage of using the Hiber-nation (Save-to-Disk) function is thatpower is not required to maintain yourdata. This is particularly important if youwill be leaving your LifeBook notebookin a suspended state for a prolongedperiod of time. The drawback of usingHibernation mode is that it lengthensthe power down and power upsequences and resets peripheral devices.