Lenovo 628323U manual Replacing a memory module

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10.Reinstall the battery. See “Replacing the battery” on page 27.

11.Turn the computer over again. Connect the ac power adapter and all cables.

Replacing a memory module

Before you start, print these instructions.

Increasing memory capacity is an effective way to make programs run faster. To replace or add a memory module, read the following prerequisites, and then the instructions.

When replacing a memory module, be sure to follow the precautions.

Note: The operating speed of the memory module has dependency on the system configuration. In some conditions, the memory module in your computer might not be able to operate at the maximum speed.

Attention: Before you start installing a memory module, touch a metal table or a grounded metal object. This action reduces any static electricity from your body. The static electricity could damage the memory module.

To replace a memory module, do the following:

1.Turn off the computer; then disconnect the ac power adapter and all cables from the computer.

2.Close the computer display, and turn it over.

3.Remove the battery. See “Replacing the battery” on page 27.

4. Loosen the screws

1 , and then remove the cover

2.

32User Guide

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Contents User Guide Safety, Warranty, and Setup Guide Regulatory Notice Contents Appendix B. Weee and recycling Statements Prevent your computer from getting wet Read this firstProtect yourself from the heat that your computer generates Protect the cables from being damagedHandle your computer gently Important safety informationConditions that require immediate action Carry your computer carefullySafety guidelines Service and upgradesPower cords and power adapters Extension cords and related devicesPlugs and outlets Power supply statementExternal devices General battery notice Rechargeable battery noticeElectrical current safety information Heat and product ventilationUsing headphones or earphones Liquid crystal display LCD noticeAdditional safety information Xii User Guide Front view Locating computer controls, connectors, and indicatorsProduct overview CameraRight-side view System status indicatorPower button MicrophoneAc power connector USB 2.0 connectorPower status indicator Media card reader slotEthernet connector VGA connectorUSB 3.0 connectors Left-side viewSystem status indicators Status indicatorsBottom view User Guide Locating important product information Wireless status indicatorPower status indicator Machine type and model labelFCC ID and IC Certification number label Features SpecificationsBattery life Power source ac power adapterBattery pack Operating environmentHow can I use the battery power more effectively? Using your computerFrequently asked questions Registering your computerHow do I give presentations or attach an external monitor? Special keysHow do I attach or replace a device? Using the UltraNav pointing device Using the TrackPoint pointing deviceChanging the cap Using the touch padCustomizing the touch pad Using the ac power adapter Power managementChecking the battery status Connecting the ac power adapterPower-saving modes Charging the batteryMaximizing the battery life Handling the batteryUsing your computer Go to Settings Internet connection Wi-Fi network Connecting to a wireless LANEstablishing wireless LAN connections Wireless LAN connection statusConnecting an external monitor Connecting a projector or an external monitorTips for using the wireless LAN feature Attaching an external monitorUsing the camera Using audio featuresUsing a flash media card Inserting a flash media card Removing a flash media cardUser Guide You and your computer Accessibility and comfortErgonomic information Accessibility information ComfortTravel tips Travel accessoriesTraveling with your computer Assistive technologiesUser Guide Replacing devices Replacing the batteryStatic electricity prevention User Guide Before you start, print these instructions User Guide Replacing devices Replacing a memory module Replacing devices Replacing the keyboard Replacing devices Installing the keyboard Replacing devices User Guide Replacing devices User Guide Taking care of your computer Troubleshooting computer problemsBe careful about where and how you work Be gentle with your computerCleaning the cover of your computer Cleaning your computer display Computer stops respondingEthernet problems Memory module problemsNetworking problems Spills on the keyboardAn UltraNav pointing device problem Wireless LAN problemProblems with the keyboard and other pointing devices SolutionProblems with the display and multimedia devices Keyboard problemsComputer screen problems External monitor problems Audio problemsBattery problems Battery and power problemsPower problems Power button problem Sleep problemsUser Guide Getting support Getting help and serviceBefore you contact Lenovo Calling Lenovo Lenovo Support Web siteTelephone numbers Purchasing additional services Finding ThinkPad optionsUser Guide Wireless interoperability Wireless related informationLocation of the UltraConnect wireless antennas Appendix A. Regulatory informationElectronic emission notices Locating wireless regulatory noticesExport classification notice Federal Communications Commission Declaration of ConformityAppendix A. Regulatory information User Guide Appendix B. Weee and recycling statements Important Weee informationUser Guide Power plan Energy Saver settings when plugged into ac power Appendix C. Energy Star model informationUser Guide Appendix D. Notices Trademarks Page Part Number Printed 1P P/N