Dell Precision™ M20 Service ManualNotes, Notices, and CautionsInformation in this document is subject to change without notice.© 2005 Dell Inc. All rights reserved.Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.Trademarks used in this text: Dell, the DELL logo, and Dell Precision are trademarks of Dell Inc.; Intel is a registered trademark of Intel Corporation; Bluetooth is a registeredtrademark owned by Bluetooth SIG, Inc. and is used by Dell Inc. under license.Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims anyproprietary interest in trademarks and trade names other than its own.Model PP11LJanuary 2005 Rev. A00Before You BeginSystem ComponentsHard DriveMemory Module, Modem, and DevicesCoin-Cell BatteryMini PCI CardInternal Card With Bluetooth® Wireless TechnologyCenter Control CoverKeyboardDisplay Assembly and Display LatchPalm RestFanMicroprocessor Thermal-Cooling AssemblyMicroprocessor ModuleSpeaker AssemblyBase LatchSystem BoardPin Assignments for I/O ConnectorsFlashing the BIOSNOTE: A NOTE indicates important information that helps you make better use of your computer.NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.