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Lenovo M50e Series, A50 manual Removing the cover, To remove the cover

Models: A50 M50e Series

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Removing the cover

Important

Read “Important safety information” on page v and “Handling static-sensitive devices” on page 55 before removing the cover.

To remove the cover:

1.Shut down your operating system, remove any media (diskettes, CDs, or tapes) from the drives, and turn off all attached devices and the computer.

2.Unplug all power cords from electrical outlets.

3.Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer.

4.Press the cover-release button on the left side cover and remove the cover.

60User Guide

Page 76

Image 76

Lenovo M50e Series, A50 manual Removing the cover, To remove the cover

Contents

Types 8148, 8149, 8174, Types 8176, 8177 User Guide TypesThinkCentre Page Types 8148, 8149, 8174, Types User Guide TypesThinkCentre Third Edition May Contents Chapter 4. Using the IBM Setup Utility Important safety information Conditions that require immediate actionGeneral safety guidelines ServicePower cords and power adapters viUser GuideExtension cords and related devices Plugs and outletsBatteries Important safety informationHeat and product ventilation CD and DVD drive safetyviiiUser Guide Additional safety information DANGERTo avoid a shock hazard DANGERLithium battery notice Modem safety informationDo not Ne pasLaser compliance statement Consignes de sécurité relatives au modemDANGER DANGERInformation resources Overviewxiii Identifying your computer See Chapter 1, “Types 8149, 8177, and8178,” on page See Chapter 2, “TypesFeatures Chapter 1. Types 8149, 8177, andSystem information MemorySystem management features Input/output featuresPower Video subsystemSecurity features IBM preinstalled softwareSpecifications DimensionsWeight EnvironmentTools required Available optionsHandling static-sensitivedevices Installing external options 7AGP slot some models Connector Obtaining device driversDescription Removing the cover Locating components Identifying parts on the system boardInstalling memory Installing adapters What to do next5.Install the adapter-slot-coverlatch What to do nextInstalling internal drives Drive specificationsInstalling a drive 16User Guide Connecting the first CD drive or DVD drive Connecting a serial ATA hard disk drive Installing security featuresWhat to do next Identifying security locks Rope clip20User Guide Password protection Changing the batteryIntegrated cable lock What to do nextTo change the battery Replacing the cover and connecting the cables 24User Guide Chapter 2. Types 8126, 8174, 8175, and FeaturesSystem information MemorySystem management features Input/output featuresPower Internal drivesSecurity features IBM preinstalled softwareSpecifications Height 398 mm 15.67 in Width 180 mm 7.08 inAvailable options Tools requiredHandling static-sensitivedevices The following are some available optionsInstalling external options 30User Guide1USB connector 2USB connector 7 VGA monitor connector Obtaining device drivers ConnectorDescription Removing the cover To remove the cover6Power supply Locating componentsIdentifying parts on the system board 1Microprocessor and heat sinkInstalling memory 36User GuideTo install a DIMM What to do nextInstalling adapters To install an adapter5.Secure the adapter with the screw as shown Installing internal drivesWhat to do next Drive specifications vA CD drive or DVD drive in bayInstalling a drive To install an internal drive, follow these stepsConnecting the first CD drive or DVD drive 42User GuideInstalling security features Connecting a serial ATA hard disk driveAn additional drive can be connected to either the primary IDE or secondary IDE connector What to do nextIdentifying security locks Rope clip1 Rope clip 2 Integrated cable lock 3 Padlock loopChapter 2. Types 8126, 8174, 8175, and Password protection Changing the batteryIntegrated cable lock What to do nextTo change the battery Replacing the cover and connecting the cables 8.Repeat steps 2 through 4 on pageChapter 2. Types 8126, 8174, 8175, and 50User Guide Chapter 3. Types 8084, 8085, 8147, 8148, and FeaturesSystem information MemorySystem management features Input/output featuresInternal drives Video subsystemSecurity features PowerIBM preinstalled software Specifications Height 413 mm 16.25 in Width 191 mm 7.5 inAvailable options Tools requiredHandling static-sensitivedevices The following are some available optionsInstalling external options 56User Guide1IEEE 1394 connector 4USB connector2Microphone connector 5USB connector58User Guide Obtaining device drivers ConnectorDescription Removing the cover To remove the cover5Power supply Locating componentsIdentifying parts on the system board 1Microprocessor and heat sinkInstalling memory 62User GuideTo install a DIMM Installing adaptersWhat to do next What to do next 64User GuideInstalling internal drives Drive specificationsInstalling a drive To install an internal drive, follow these steps4.Remove the metal shield from the drive bay by inserting a flat-bladescrewdriver into one of the slots and gently prying it loose Connecting the first CD drive or DVD drive 68User GuideConnecting a serial ATA hard disk drive Installing security featuresWhat to do next Identifying security locks To install a rope clipRope clip Chapter 3. Types 8084, 8085, 8147, 8148, and Password protection Changing the batteryIntegrated cable lock What to do nextTo change the battery Replacing the cover and connecting the cables 8.Repeat steps 2 through 4 on pageChapter 3. Types 8084, 8085, 8147, 8148, and 76User Guide Chapter 4. Using the IBM Setup Utility program Starting the IBM Setup Utility programViewing and changing settings Exiting from the IBM Setup Utility programAdministrator password Setting, changing, and deleting a passwordUsing Security Profile by Device Selecting a startup deviceSelecting a temporary startup device Advanced settingsChanging the startup sequence 80User Guide Updating flashing BIOS from a diskette Updating flashing BIOS from your operating systemAppendix A. Updating system programs System programsRecovering from a POST/BIOS update failure Cleaning an optical mouse Appendix B. Cleaning the mouseCleaning a mouse with a ball 8.Replace the ball and the retainer ring Basic AT commands Appendix C. Manual modem commandsATH ENTER Command Extended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 1 commands Fax Class 2 commandsVoice commands Telekom PTT SCR-BE Taximpulssperrfilter-12kHz Attention Switzerland UserPTT Art. Bakom 93.0291.Z.N 92User Guide CRU parts list 94User Guide IBM Director of Licensing IBM Corporation Appendix E. NoticesNorth Castle Drive Armonk, NY U.S.A Television output notice TrademarksIndex A drives continuedPage Page 1P P/N 19R0764