Locking the computer cover, Installing a padlock | Lenovo 3484JMU

Locking the computer cover

Locking the computer cover helps prevent unauthorized people from gaining access to the inside of your computer. Your computer comes with a padlock loop so that the computer cover cannot be removed when a padlock is installed.

Figure 7. Installing a padlock

28ThinkCentre User Guide

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Lenovo 3484JMU manual Locking the computer cover, Installing a padlock

Contents

ThinkCentre User Guide Third Edition September Copyright Lenovo Contents Appendix A. Notices 111 Index Iv ThinkCentre User Guide Service and upgrades Important safety informationStatic electricity prevention Power cords and power adapters Extension cords and related devices External devices Plugs and outletsHeat and product ventilation Modem safety information Operating environment Cleaning and maintenance Power supply statementLaser compliance statement ThinkCentre User Guide Features Product overview System management features Connectivity Input/Output I/O features Power supplySecurity features Preinstalled software programs Linux Microsoft Windows XP Professional SP Accessing Lenovo programs on the Windows 7 operating system SpecificationsLenovo programs Accessing Lenovo programs from Control Panel Program Icon name Accessing Lenovo programs on the Windows 8 operating system An introduction to Lenovo programsCommunications Utility Fingerprint Software Lenovo Settings Lenovo Solution CenterPassword Manager Power Manager Locations System UpdateView Management Utility Front connector, control, and indicator locations Locating connectors on the rear of your computer Connector Description Locating components Component locations Locating parts on the system board System board part locations Locating internal drives Drive bay locations Machine type and model label Machine type and model label ThinkCentre User Guide Using your computer Frequently asked questionsAccessing Control Panel on the Windows 8 operating system Where can I find help about the Windows operating system? Using the keyboard Using Windows shortcut keysUsing the blue ThinkVantage button Using a fingerprint reader Using the wheel mouse Adjusting audioSetting the volume from the desktop Adding the volume icon to the taskbar Setting the volume from Control Panel Using CDs and DVDsSound section, click Adjust system volume Handling and storing CD and DVD media Playing a CD or DVD Recording a CD or DVD ThinkCentre User Guide Accessibility and comfort You and your computerArranging your workspace Comfort Air circulation Glare and lightingElectrical outlets and cable lengths Registering your computer Voltage-selection switchMoving your computer to another country or region Replacement power cords Security features Security Installing a padlock Locking the computer cover Bios passwords Using passwordsAttaching an integrated cable lock Windows passwords Configuring the fingerprint readerUsing and understanding firewalls Protecting data against viruses Security ThinkCentre User Guide Installing or replacing hardware Installing or replacing hardwareInstalling external options Handling static-sensitive devices Removing the computer cover Removing the computer cover Removing and reinstalling the front bezel Removing the front bezel Installing or replacing a PCI card What to do next Removing the screw that secures the PCI card latch Removing a PCI card Installing or replacing a memory module Installing a PCI card Removing a memory module Replacing the battery Installing a memory module Removing the old battery Replacing the primary hard disk drive Removing the primary hard disk drive Installing the hard disk drive Replacing the optical drive Removing the optical drive Installing the optical drive Replacing the power supply assembly Replacing the heat sink and fan assembly Removing the screws for the power supply assembly Removing the heat sink and fan assembly Replacing the microprocessor Accessing the microprocessor Installing the microprocessor Replacing the front audio and USB assembly Removing the front audio and USB assembly Replacing the WiFi units Removing the WiFi adapter card Removing the WiFi card module Removing the WiFi adapter card Installing the WiFi units Removing the screws that secure the WiFi card module Installing the WiFi card module Installing the WiFi antenna cables Installing the rear WiFi antenna Installing or removing the rear WiFi antennaRemoving the rear WiFi antenna Installing or removing the front WiFi antenna Installing the front WiFi antenna Connect the front antenna cable to the WiFi card module Removing the front WiFi antenna Replacing the keyboard or mouse Completing the parts replacement Connecting the USB keyboard or mouse Reinstalling the computer cover Obtaining device drivers Recovery information for the Windows 7 operating system Recovery informationCreating and using recovery media Performing backup and recovery operations Creating recovery mediaUsing recovery media Performing a backup operation Performing a recovery operation Using the Rescue and Recovery workspaceClick the Restore your system from a backup icon Using a rescue medium Creating and using a rescue mediumCreating a rescue medium Reinstalling preinstalled applications Reinstalling preinstalled applications and device driversReinstalling preinstalled device drivers Reinstalling device drivers Reinstalling software programsSolving recovery problems Recovery information for the Windows 8 operating system Refreshing your computer ThinkCentre User Guide Starting the Setup Utility program Using the Setup Utility programViewing and changing settings Password considerations Power-On PasswordAdministrator Password Hard Disk Password Erasing lost or forgotten passwords clearing Cmos Enabling or disabling a device Enabling ErP compliance mode Selecting a startup deviceSelecting a temporary startup device Selecting or changing the startup device sequence Exiting the Setup Utility program ThinkCentre User Guide Updating flashing the Bios from a disc Using system programsUpdating system programs Recovering from a POST/BIOS update failure Updating flashing the Bios from your operating systemClick Download Drivers & Software Click Use Quick Path Preventing problems Keeping your computer currentGetting the latest device drivers for your computer Updating your operating system Using System Update Basics Cleaning your computer ComputerKeyboard Optical mouse Cleaning a glass-screen surface Good maintenance practicesMoving your computer Preventing problems ThinkCentre User Guide Troubleshooting and diagnostics Basic troubleshooting Troubleshooting procedure Troubleshooting Audio problems No audio in Windows Sound comes from one external speaker only CD problemsNo audio in DOS applications or games CD or DVD does not work DVD problemsBlack screen instead of DVD video DVD movie will not play No audio or intermittent audio while playing DVD moviePlayback is very slow or choppy Invalid disc or no disc found message Keyboard, mouse, or pointing device problems Intermittent problemsAll or some keys on the keyboard do not work Wireless keyboard does not work Mouse or pointing device does not workPointer on the screen does not move smoothly with the mouse Fingerprint reader does not work Monitor problems Wrong characters appear on the screen Image appears to be flickering Image is discolored Networking problems Ethernet problemsYour computer cannot connect to the network Click Start Control Panel Click Hardware and Sound Wake on LAN feature is not working Wireless LAN problemAdapter stops working for no apparent reason Option problems Wireless WAN problemBluetooth problem An option that was just installed does not work Performance and lockup problems Click Disk CleanupAn option that previously worked does not work now Insufficient free hard disk drive space Excessive number of fragmented files Insufficient memory Printer problems Serial port problems Software problems Software does not work as expected Diagnostic programs USB problemsLenovo Solution Center Creating a diagnostic disc Running the diagnostic program from a diagnostic discLenovo ThinkVantage Toolbox PC-Doctor for DOS ThinkCentre User Guide Getting information, help, and service Help and service Using the documentation and diagnostic programsCalling for service Lenovo Support Web site Using other services Purchasing additional services ThinkCentre User Guide Appendix A. Notices 111 Trademarks Appendix B. Regulatory information Export classification noticeTelevision output notice Electronic emissions notices Industry Canada Class B emission compliance statement Additional regulatory information ThinkCentre User Guide Appendix C. Weee and recycling information Important Weee informationRecycling information 117 Battery recycling information for Taiwan Recycling information for Brazil Battery recycling information for the European Union ThinkCentre User Guide Ukraine RoHS China RoHS Turkish RoHS121 India RoHS Index 123 Keyboard, replacing Lenovo Solution Center 104 125 ThinkCentre User Guide