Dell Precision M4400 Service Manual

Also see for M4400 - Precision Mobile Workstation: Manual How-to guide How-to guide System Board Replacement How-to guide

Contents

Dell Precision M4400 Service Manual Manual pdf 5 page image

Back to Contents PageBefore Working on Your ComputerDell Precision™ Service ManualRecommended ToolsWhat You Need to Know for Your SafetyRemoving the BatteryReplacing the BatteryAfter Working on Your ComputerThis document provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that:l You have performed the steps in Before Working on Your Computer.l You have read the safety information that shipped with your computer.l When replacing a component, you have already removed the original, if installed.Recommended ToolsThe procedures in this document may require the following tools:l Small flat-blade screwdriverl Phillips #0 screwdriverl Small plastic scribel Flash BIOS update (see the Dell Support website at support.dell.com)What You Need to Know for Your SafetyUse the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety.1. Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.2. Shut down your computer.l In Windows® XP, click Start® Shutdown® Shutdown.l In Windows Vista®, click Start , click the arrow icon, and then click Shut Down.3. Disconnect your computer and all attached devices from their electrical outlets.4. Disconnect any telephone or network cables from the computer.5. Remove any installed cards.NOTE: The color of your system and certain system components may appear differently than shown in this document.CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety bestpractices information, see the Regulatory Compliance Homepage on www.dell.com at: www.dell.com/regulatory_compliance.NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is notcovered by your warranty.NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface, suchas a connector on the back of the computer.NOTICE: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metalmounting bracket. Hold a component such as a processor by its edges, not by its pins.NOTICE: When disconnecting a cable, pull on the cable's connector or on its strain-relief loop, not on the cable itself. For cable connectors with lockingtabs, press inward on the locking tabs to release the connector. When connecting a cable, ensure that the connectors are correctly oriented andaligned to avoid damage to the connector and/or the connector's pins.NOTE: Ensure that the computer is off and not in a power management mode. If you cannot shut down the computer using the operating system,press and hold the power button for 4 seconds.NOTICE: To disconnect a network cable, first unplug the cable from your computer, and then unplug it from the network wall jack.NOTICE: To help prevent damage to the system board, you must remove the battery from the battery bay before you service the computer.