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Lenovo 10120/90A0 [K450 NON-ES] c. Remove the screw that secures the graphics card to the chassis

Models: 10120/90A0 [K450 NON-ES] 10121/90A1 [K450 ES] 10089/1168/4744 [K410] 10086/3109/4743 [K430] 10090/2556/4748 [K415]

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c.Remove the screw that secures the graphics card to the chassis.

b.Remove the screw that secures the graphics card latch to the chassis, open it, and remove the Duo-graphics cards connector.

c.Remove the screw that secures the graphics card to the chassis.

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d. Remove the graphics card by pulling it straight out of the connector.

56User Guide

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Lenovo 10120/90A0 [K450 NON-ES] manual c. Remove the screw that secures the graphics card to the chassis, User Guide

Contents

User Guide IdeaCentre K4 Series31503699 Important Safety Information Page Important Safety Information ContentsUsing Windows Using the Rescue SystemHardware Replacement Guide Using the SoftwareAppendix Troubleshooting and Confirming SetupThis chapter contains the following topics Using the Computer HardwareUser Guide Front view of the chassis IdeaCentre K450 Rear view of the chassis4 User Guide IdeaCentre K410 6 User Guide Use this connector to attach a microphone to your Basic connector instructionscomputer when you want to record sound or if you Use this connector to attach headphones to yourConnecting your computer The configurations are as followings 5.1 Audio configuration instructionsSound configuration is as follows 7.1 Audio configuration instructionsConnecting the power cord Connecting to the Internet Display connecting instructions when playing Blu-ray DiscsWired keyboard selected models only Using the hot-swappable hard disk Hot-swappable hard disk selected models onlyComponents Hot-swappable hard diskDo not install the operating system on the hot-swappable hard disk Power Control Switch selected models only To display the main screen of the software COOL AUTO18 User Guide TURBO 20 User Guide This chapter contains the following topics Using WindowsThe Charms Bar Switching between the main Windows 8 interfacesShutting down the computer 22 User GuideClosing an app Switching between appsOpening other system programs Windows Help and Support24 User Guide This chapter contains the following topics Using the Rescue SystemOneKey Recovery Note about the service partitionMethod 1 Automatic Installation Driver and Application InstallationMethod 2 Manual Installation 28 User Guide This chapter contains the following topic Using the SoftwareUser Guide Lenovo Support Service and WarrantyRegistration User Guide Troubleshooting and Problem Resolution Troubleshooting and Confirming SetupThis chapter contains the following topic User GuideTroubleshooting Display Problems Solving ProblemsTroubleshooting Audio Problems Troubleshooting Problems with Optical Drives and Hard Disks Troubleshooting Software Problems34 User Guide Special considerations for troubleshooting Windows Windows Help and Support BIOS setup utility36 User Guide Performing Daily Maintenance Tasks 38 User Guide This chapter contains the following topics Hardware Replacement Guide Identifying internal components  Removing the front bezelOverview Safety information for replacing CRUsTools required Additional information resourcesHandling static-sensitive devices Identifying internal components LocationsHard disk drive User GuideLenovo K450 Identifying parts on the system boardLenovo K430 Front panel connector Battery46 User Guide Lenovo K410Lenovo K415 Replacing hardware Pre-disassembly instructionsGeneral information To remove the computer cover Removing the computer coverTo remove the front bezel Removing the front bezelTo replace a memory module Replacing a memory moduleSlot four Lenovo K415Slot one or three Slots one and two, three and four or one and threeTo replace a hard disk drive Replacing a hard disk driveTo replace an optical drive Replacing an optical driveTo replace a graphics card Replacing a graphics card56 User Guide c. Remove the screw that secures the graphics card to the chassisb. Remove the screw that secures the graphics card to the chassis To replace the TV-Tuner card Replacing the TV-Tuner card7. Reattach the computer cover To replace the keyboard Replacing the keyboard and mouseDeclaration AppendixTrademarks Energy Star Statement Enabling ErP compliance mode