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Lenovo 10089/1168/4744 [K410], 10121/90A1 [K450 ES] manual Replacing hardware, General information

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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Replacing hardware

12V power connector Microprocessor and heat sink Memory slots (4)

Mini PCI-E slot eSATA connector

Solid state disk power connector (Optional)

SATA connectors (4) Front panel connector Mode switch connector ROM socket

Front USB header Front audio connector System fan header

Battery

Microprocessor fan header Thermal sensor header Power connector

Power fan header LPC debug connector

Serial (COM2) connector SPI debug connector Front USB connector (2) Clear CMOS jumper

PCI express X 1 adapter slots (3) PCI express X 16 adapter slot

Replacing hardware

Attention: Do not remove the computer cover or attempt any repair before reading the “Important safety information” in the Safety and Warranty Guide that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety and Warranty Guide or HMM, go to the Support Web site at http://support.lenovo.com.

General information

Pre-disassembly instructions

Before proceeding with the disassembly procedure, make sure that you do the following:

1.Turn off the power to the system and all peripherals.

2.Unplug all power and signal cables from the computer.

3.Place the system on a flat, stable surface.

48User Guide

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Lenovo 10089/1168/4744 [K410], 10121/90A1 [K450 ES] Replacing hardware, General information, Pre-disassembly instructions

Contents

31503699 IdeaCentre K4 SeriesUser Guide Important Safety Information Page Important Safety Information ContentsUsing Windows Using the Rescue SystemHardware Replacement Guide Using the SoftwareAppendix Troubleshooting and Confirming SetupUser Guide Using the Computer HardwareThis chapter contains the following topics 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 18 User Guide AUTOCOOL 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 2 Manual Installation Driver and Application InstallationMethod 1 Automatic Installation 28 User Guide User Guide Using the SoftwareThis chapter contains the following topic 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 34 User Guide Troubleshooting Software ProblemsTroubleshooting Problems with Optical Drives and Hard Disks Special considerations for troubleshooting Windows 36 User Guide BIOS setup utilityWindows Help and Support 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 General information Pre-disassembly instructionsReplacing hardware 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