Lenovo ThinkPad W541 (English) Hardware Maintenance Manual - ThinkPad T540p, W - Page 41

Power management, Screen blank mode (for Windows 7 only), Sleep mode, Press F10.

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system back to operational status, the only Lenovo and Lenovo-authorized service solution would be to replace the hard disk drive or solid-state drive with a scheduled fee. To remove a user hard disk password that has been forgotten, when the supervisor password and master hard disk password are known, do the following: 1. Turn on the computer. 2. When the logo screen comes up, immediately press F1 to enter the ThinkPad Setup program. 3. Select Security. 4. Select Password. 5. Select Hard-disk x password, where x is the letter of the hard disk drive. A pop-up window opens. 6. Select Master hard disk password. 7. Type the current master hard disk password in the Enter Current Password field. Then leave the Enter New Password field blank, and press Enter twice. 8. Press F10. 9. Press F10 to save changes and exit the ThinkPad Setup program. The user hard disk password and the master hard disk password have been removed. Power management To reduce power consumption, the computer has three power management modes: screen blank, sleep, and hibernation. Screen blank mode (for Windows 7 only) If the time set on the "Turn off monitor" timer in the operating system expires, the LCD backlight turns off. To put the computer into screen blank mode, do the following: 1. Right-click the battery gauge on the taskbar. 2. Select Power off display. To end screen blank mode and resume normal operation, press any key. Sleep mode When the computer enters sleep mode, the following events occur in addition to what occurs in screen blank mode: • The LCD is powered off. • The hard disk drive or solid-state drive is powered off. • The microprocessor stops. To put your computer into sleep mode, press Fn+4 or do the following: • For Windows 7: Click the arrow beside the Shut down icon, and then select Sleep. To return from sleep mode, press the Fn key. • For Windows 8 and Windows 8.1: Move the pointer to the bottom-right corner of the screen to display the charms. Then click Settings ➙ Power ➙ Sleep. To return to normal operation, press the Fn key only. In certain circumstances, the computer goes into sleep mode automatically: • After a period of inactivity specified in power plan settings • When the battery power is low Chapter 4. Related service information 35

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systembacktooperationalstatus,theonlyLenovoandLenovo-authorizedservicesolutionwouldbeto
replacetheharddiskdriveorsolid-statedrivewithascheduledfee.
Toremoveauserharddiskpasswordthathasbeenforgotten,whenthesupervisorpasswordandmaster
harddiskpasswordareknown,dothefollowing:
1. Turn on the computer.
2.Whenthelogoscreencomesup,immediatelypressF1toentertheThinkPadSetupprogram.
3. Select
Security
.
4. Select
Password
.
5. Select
Hard-disk
x
password
,where
x
istheletteroftheharddiskdrive.Apop-upwindowopens.
6. Select
Master hard disk password
.
7.Typethecurrentmasterharddiskpasswordinthe
EnterCurrentPassword
field.Thenleavethe
Enter
New Password
fieldblank,andpressEntertwice.
8. Press F10.
9.PressF10tosavechangesandexittheThinkPadSetupprogram.Theuserharddiskpasswordandthe
masterharddiskpasswordhavebeenremoved.
Power management
Toreducepowerconsumption,thecomputerhasthreepowermanagementmodes:screenblank,sleep,
and hibernation.
Screen blank mode (for Windows 7 only)
Ifthetimesetonthe“Turnoffmonitor”timerintheoperatingsystemexpires,theLCDbacklightturnsoff.
Toputthecomputerintoscreenblankmode,dothefollowing:
1. Right-click the battery gauge on the taskbar.
2. Select
Power off display
.
Toendscreenblankmodeandresumenormaloperation,pressanykey.
Sleep mode
Whenthecomputerenterssleepmode,thefollowingeventsoccurinadditiontowhatoccursinscreen
blank mode:
• The LCD is powered off.
• The hard disk drive or solid-state drive is powered off.
• The microprocessor stops.
Toputyourcomputerintosleepmode,pressFn+4ordothefollowing:
• For Windows 7: Click the arrow beside the
Shut down
icon,andthenselect
Sleep
. To return from
sleepmode,presstheFnkey.
•ForWindows8andWindows8.1:Movethepointertothebottom-rightcornerofthescreentodisplaythe
charms. Then click
Settings
➙
Power
➙
Sleep
.
Toreturntonormaloperation,presstheFnkeyonly.
Incertaincircumstances,thecomputergoesintosleepmodeautomatically:
• After a period of inactivity specified in power plan settings
• When the battery power is low
Chapter 4
.
Related service information
35