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Lenovo 2551, 2552, 2555, 2554, 2553 manual Locking the computer cover, Installing a padlock

Models: 2552 2555 2553 2554 2551

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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.

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Figure 7. Installing a padlock

28ThinkStation User Guide

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Lenovo 2551, 2552, 2555, 2554, 2553 manual Locking the computer cover, Installing a padlock

Contents

ThinkStation User Guide First Edition June Copyright Lenovo Contents Appendix A. Notices 107 Appendix B. Regulatory Information Iv ThinkStation User Guide Service and upgrades Important safety informationStatic electricity prevention Power cords and power adapters Extension cords and related devicesExternal devices Plugs and outletsHeat and product ventilation Modem safety information Operating environmentCleaning and maintenance Power supply statementLaser compliance statement ThinkStation User Guide Features Product overviewSystem management features ConnectivityInput/Output I/O features Power supplySecurity features ExpansionPreinstalled software programs Preinstalled operating systemSoftware overview SpecificationsSoftware provided by Lenovo Product Recovery Lenovo ThinkVantage ToolsLenovo Welcome Fingerprint SoftwareAdobe Reader Antivirus software LocationsFront connector, control, and indicator locations Locating connectors on the rear of your computer Connector DescriptionDisplayPort connector Locating components Component locationsLocating parts on the system board System board part locationsProduct overview Locating internal drives Drive bay locationsMachine type and model label Machine type and model labelThinkStation User Guide Using your computer Frequently asked questionsUsing the keyboard Using Windows shortcut keysUsing the blue ThinkVantage button Using a fingerprint readerUsing the wheel mouse Adjusting audioSetting the volume from the desktop Setting the volume from Control PanelUsing CDs and DVDs Adding the volume icon to the taskbarPlaying a CD or DVD Handling and storing CD and DVD mediaRecording a CD or DVD Using your computer ThinkStation User Guide Accessibility and comfort You and your computerArranging your workspace ComfortAir circulation Glare and lightingElectrical outlets and cable lengths Voltage-selection switch Replacement power cordsRegister your computer with Lenovo Moving your computer to another country or regionThinkStation User Guide Security features SecurityInstalling a padlock Locking the computer coverBios passwords Using passwordsAttaching an integrated cable lock Windows passwords Configuring the fingerprint readerUsing and understanding firewalls Protecting data against virusesSecurity ThinkStation User Guide Installing or replacing hardware Installing or replacing hardwareInstalling external options Handling static-sensitive devicesRemoving the computer cover Removing the computer coverInstalling or replacing a PCI card Removing and reinstalling the front bezelWhat to do next Opening the PCI card latch Removing a PCI card Installing or replacing a memory module Installing a PCI cardUdimm Dimm Installing or replacing the optical drive Opening the retaining clipsRemoving the optical drive Installing the optical drive Replacing the card readerRemoving the card reader Replacing the power supply assembly Installing the card readerInstalling or replacing hardware Replacing the heat sink and fan assembly Removing the screws for the power supply assemblyRemoving the heat sink and fan assembly Installing the solid state drive Installing the solid state drive into the storage converterReplacing the primary hard disk drive Removing the primary hard disk drive Installing the primary hard disk drive Replacing the secondary hard disk driveRemoving the secondary hard disk drive Installing the tertiary hard disk drive Installing the secondary hard disk driveInstalling the tertiary hard disk drive Installing the solid state drive with the storage converter Installing the optical drive bracket Replacing the front fan assembly Removing the front fan assemblyReplacing the rear fan assembly Installing the front fan assemblyRemoving the rear fan assembly Installing the rear fan assembly Replacing the keyboard or mouseCompleting the parts replacement Connecting the USB keyboard or mouseReinstalling the computer cover Obtaining device driversCreating and using recovery media Recovery informationCreating recovery media Performing backup and recovery operations Using recovery mediaPerforming a backup operation Using the Rescue and Recovery workspace Performing a recovery operationClick 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 ThinkStation User Guide Starting the Setup Utility program Using the Setup Utility programViewing and changing settings Password considerations Power-On PasswordAdministrator Password Hard Disk PasswordErasing lost or forgotten passwords clearing Cmos Enabling or disabling a deviceEnabling ErP compliance mode Selecting a startup deviceSelecting a temporary startup device Selecting or changing the startup device sequenceDisabled ICE performance modeICE thermal alert Exiting the Setup Utility program Configuring RAID Creating RAID volumesSelect Devices ATA Drive Setup RAID LevelDeleting RAID volumes Resetting disks to non-RAIDUpdating 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 systemUsing System Update BasicsCleaning your computer ComputerKeyboard Optical mouseCleaning a glass-screen surface Good maintenance practicesMoving your computer Troubleshooting and diagnostics Basic troubleshootingTroubleshooting procedure TroubleshootingAudio problems No audio in WindowsSound 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 messageIntermittent problems Keyboard, mouse, or pointing device problemsAll or some keys on the keyboard do not work Mouse or pointing device does not workMonitor problems Wireless keyboard does not workPointer on the screen does not move smoothly with the mouse Fingerprint reader does not workWrong characters appear on the screen Image appears to be flickeringNetworking problems Ethernet problemsImage is discolored Your computer cannot connect to the networkClick Start Control Panel Click Hardware and Sound Wake on LAN feature is not workingAdapter stops working for no apparent reason Wireless LAN problem Wireless WAN problemBluetooth problems Sound does not come from the Bluetooth headphoneAn option that was just installed does not work Option problemsAn option that previously worked does not work now Insufficient free hard disk drive space Performance and lockup problemsExcessive number of fragmented files Printer problems Serial port problemsInsufficient memory Click Defragment Now, then click ContinueSoftware problems Software does not work as expectedUSB problems Lenovo Solution CenterThinkStation User Guide Getting information, help, and service Help and service Using the documentation and diagnostic programCalling for service Lenovo Support Web siteUsing other services Purchasing additional servicesThinkStation User Guide Appendix A. Notices 107Trademarks Appendix B. Regulatory information Export classification noticeElectronic emissions notices Federal Communications Commission Declaration of ConformityThinkStation User Guide Additional regulatory information ThinkStation User Guide Appendix C. Weee and recycling information Important information for the European Directive 2002/96/ECRecycling information 113Battery recycling information for Taiwan Recycling information for BrazilBattery recycling information for the European Union ThinkStation User Guide Appendix D. Energy Star model information 117ThinkStation User Guide Appendix E. Ek Bilgiler 119ThinkStation User Guide Garanti Hizmetinin Alınabileceği Merkezler Appendix F. Servis istasyonlari121 Antalya Erzİncan Iğdir İzmİr Muğla Şanliurfa ThinkStation User Guide Index 129Memory module 131 ThinkStation User Guide