Lenovo 5150, 5106, 5114, 5110 Password considerations, Power-On Password, Administrator Password

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Administrator Password

Hard Disk Password

You do not have to set any passwords to use your computer. However, using passwords improves computing security. If you decide to set any passwords, read the following sections.

Password considerations

A password can be any combination of up to 64 alphabetic and numeric characters. For security reasons, it is recommended to use a strong password that cannot be easily compromised. To set a strong password, use the following guidelines:

Have at least eight characters in length

Contain at least one alphabetic character and one numeric character

Setup Utility program and hard disk drive passwords are not case sensitive

Not be your name or your user name

Not be a common word or a common name

Be significantly different from your previous passwords

Power-On Password

When a Power-On Password is set, you are prompted to type a valid password each time the computer is turned on. The computer cannot be used until the valid password is typed in.

Administrator Password

Setting an Administrator Password deters unauthorized users from changing configuration settings. If you are responsible for maintaining the configuration settings of several computers, you might want to set an Administrator Password.

When an Administrator Password is set, you are prompted to type a valid password each time you try to access the Setup Utility program. The Setup Utility program cannot be accessed until a valid password is typed in.

If both the Power-On Password and Administrator Password are set, you can type either password. However, you must use your Administrator Password to change any configuration settings.

Hard Disk Password

Setting a Hard Disk Password prevents unauthorized access to the data on the hard disk drive. When a Hard Disk Password is set, you are prompted to type a valid password each time you try to access the hard disk drive.

Notes:

After you set a Hard Disk Password, your data on the hard disk drive is protected even if the hard disk drive is removed from one computer and installed in another.

If the Hard Disk Password is forgotten, there is no way to reset the password or recover data from the hard disk drive.

Setting, changing, and deleting a password

To set, change, or delete a password, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 55.

56ThinkCentre Hardware Maintenance Manual

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Contents ThinkCentre Hardware Maintenance Manual Page ThinkCentre Hardware Maintenance Manual Second Edition September Copyright Lenovo Contents Appendix A. Notices 117 Important Safety Information About this manualThinkCentre Hardware Maintenance Manual Electrical safety Safety informationGeneral safety ThinkCentre Hardware Maintenance Manual Safety inspection guide Handling electrostatic discharge-sensitive devicesSafety notices multi-lingual translations Grounding requirementsTo Connect To Disconnect ≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Safety information Perigo Cuidado Para Conectar Para DesconectarPerigo Safety information ThinkCentre Hardware Maintenance Manual Safety information Connexion Déconnexion ≥18 kg 37 lbs ≥32 kg 70.5 lbs ≥55 kg 121.2 lbs Vorsicht Achtung ThinkCentre Hardware Maintenance Manual Safety information Pericolo Per collegarsi Per scollegarsiPrestare attenzione nel sollevare lapparecchiatura ThinkCentre Hardware Maintenance Manual Peligro No debe Adopte procedimientos seguros al levantar el equipo ThinkCentre Hardware Maintenance Manual General information SpecificationsAccessing Lenovo programs on the Windows 7 operating system Lenovo programsProgram Icon name Program Control Panel section Green text in Control PanelAccessing Lenovo programs on the Windows 8 operating system Additional information resourcesThinkCentre Hardware Maintenance Manual Problem determination tips General CheckoutThinkCentre Hardware Maintenance Manual Symptom Action Troubleshooting and diagnosticsBasic troubleshooting Accessing Control Panel on the Windows 8 operating system Troubleshooting procedureTroubleshooting Sound comes from one external speaker only Audio problemsNo audio in Windows CD or DVD does not work CD problemsNo audio in DOS applications or games DVD movie will not play DVD problemsBlack screen instead of DVD video No audio or intermittent audio while playing DVD moviePlayback is very slow or choppy Intermittent problemsKeyboard, mouse, or pointing device problems Invalid disc or no disc found messagePointer on the screen does not move smoothly with the mouse All or some keys on the keyboard do not workMouse or pointing device does not work Fingerprint reader does not work Monitor problemsWireless keyboard does not work Wrong characters appear on the screenImage appears to be flickering Image is discoloredNetworking problems Ethernet problemsWireless LAN problem Adapter stops working for no apparent reasonBluetooth problems Option problemsWireless WAN problem An option that previously worked does not work now Performance and lockup problemsAn option that was just installed does not work Insufficient free hard disk drive spaceExcessive number of fragmented files Click Start ComputerPrinter problems Serial port problemsSoftware problems Software does not work as expectedLenovo Solution Center USB problemsDiagnostics Troubleshooting and diagnostics ThinkCentre Hardware Maintenance Manual Viewing and changing settings Using the Setup Utility programStarting the Setup Utility program Using passwordsAdministrator Password Password considerationsPower-On Password Hard Disk PasswordSelecting a temporary startup device Enabling or disabling a deviceSelecting a startup device Selecting or changing the startup device sequenceEnabling ErP compliance mode Exiting the Setup Utility program ThinkCentre Hardware Maintenance Manual Power Supply Problems Symptom-to-FRU IndexHard disk drive boot error Beep symptomsShort and 1 long beeps Dram memory error Post error codesBeep Symptom FRU/Action Error code Post Error Message Description/ActionDisplay/Monitor Miscellaneous error conditionsMessage/Symptom FRU/Action Message/Symptom FRU/Action Undetermined problems ThinkCentre Hardware Maintenance Manual Front connector, control, and indicator locations LocationsLocating connectors on the rear of your computer Rear connector locationsLocating major FRUs and CRUs Number FRU description Self-service CRU Optional-service CRU Looking up FRU informationLocations of the parts and connectors on the system board Locating parts on the system boardThinkCentre Hardware Maintenance Manual Removing the computer stand Adjusting the computer standReplacing FRUs Removing the computer cover Opening and closing the system board shielding Opening the system board shieldingClosing the system board shielding Replacing FRUs Removing the rear I/O shielding Installing the rear I/O shieldingReplacing the rear I/O shielding Replacing the hard disk drive Removing the hard disk driveInstalling a hard disk drive Replacing the optical drive Installing an optical drive Removing the optical driveReplacing the memory module Installing a memory module Removing the memory moduleReplacing the microprocessor fan assembly Removing the microprocessor fan assemblyThinkCentre Hardware Maintenance Manual Installing a microprocessor fan assembly Replacing the microprocessor and heat sink assembly Removing the microprocessor and heat sink assembly Installing the microprocessor and heat sink assembly Replacing FRUs Replacing the system board Removing the system boardInstalling a system board Removing the internal speakers Installing internal speakersReplacing the internal speakers Replacing the rear I/O assembly Removing the rear I/O assemblyInstalling a rear I/O assembly Replacing the inverter Removing the inverter Installing an inverter Replacing the battery Removing the batteryRemoving the power supply assembly Installing a batteryReplacing the power supply assembly ThinkCentre Hardware Maintenance Manual Installing a power supply assembly ThinkCentre Hardware Maintenance Manual Replacing the LCD panel Removing the LCD panelInstalling an LCD panel Replacing the Wifi card Removing the Wifi cardInstalling the Wifi card Installing a computer wall mount Completing the FRU installationInstalling a computer cover Installing a computer standReplacing FRUs ThinkCentre Hardware Maintenance Manual Additional Service Information Updating flashing the Bios from a disc Updating flashing the Bios from your operating system Recovering from a POST/BIOS update failureAutomatic Power-On features Power managementAutomatic configuration and power interface Acpi Bios Appendix A. Notices Television output notice European conformance CE mark TrademarksIndex 119Page Page Part Number 1P P/N
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