ThinkPad X131e - Power Management Modes

7.T ypethecurrentmasterharddiskpasswordintheEnterCurrentPasswordeld.Then,leavetheEnter
NewPasswordeldblank,andpressEntertwice.
8.PressF10tosavechangesandexittheThinkPadSetupprogram.Theuserharddiskpasswordandthe
masterharddiskpasswordhavebeenremoved.
Powermanagement
Toreducepowerconsumption,thecomputerhasthreepowermanagementmodes:screenblank,sleep,
andhibernation.
Screenblankmode(fortheWindows7operatingsystemonly)
Ifthetimesetonthe“Turnoffmonitor”timerintheoperatingsystemexpires,theLCDbacklightturnsoff.
Toputthecomputerintoscreenblankmode,right-clickthebatterystatusiconfromtheWindowsnotication
areaandselectPoweroffdisplay.
Toendscreenblankmodeandresumenormaloperation,pressanykey.
Sleepmode
Whenthecomputerenterssleepmode,thefollowingeventsoccurinadditiontowhatoccursinscreen
blankmode:
•TheLCDispoweredoff.
•Theharddiskdriveispoweredoff.
•Themicroprocessorstops.
Toentersleepmode,pressFn+F4.
Incertaincircumstances,thecomputergoesintosleepmodeautomatically:
•Afteraperiodofinactivityspeciedinpowerplansettings
•Whenthebatteryindicatorblinksorange,indicatingthatthebatterypowerislow
Toreturnfromsleepmode,dooneofthefollowing:
•PresstheFnkey.
•OpentheLCDcover.
•Pressthepowerbutton.
Also,ineitherofthefollowingevents,thecomputerautomaticallyreturnsfromsleepmodeandresumes
operation:
•Theringindicator(RI)issignaledbyaserialdeviceoraPCCarddevice.
•Thetimesetontheresumetimerelapses.
Note:Thecomputerdoesnotacceptanyinputimmediatelyafteritenterssleepmode.Waitafew
secondsbeforetakinganyactiontoreenteroperationmode.
Hibernationmode
Inhibernationmode,thefollowingoccurs:
•Thesystemstatus,RAM,VRAM,andsetupdataarestoredontheharddisk.
•Thesystemispoweredoff.
Chapter4.Relatedserviceinformation33