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HP Presario M2000 HP Pavilion ze2000 Notebook PC, Compaq Presario M2000 Notebo - Page 154

System Board, System Board Spare Part Number Information

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Removal and Replacement Procedures 5.22 System Board System Board Spare Part Number Information 855, for use on full-featured models with Intel Pentium M processors (includes a disk cell RTC battery) 855GM, for use on full-featured models with Intel Pentium M processors 852GM, for use on defeatured models with Intel Celeron M processors PC Card assembly 381062-001 373522-001 373523-001 389525-001 ✎ All system board spares kits include a disk cell RTC battery. ✎ When replacing the system board, ensure that the following components are removed from the defective system board and installed on the replacement system board: ■ Memory modules (Section 5.7) ■ Mini PCI communications module (Section 5.8) ■ Heat sink (Section 5.15) ■ Processor (Section 5.17) 5-56 Maintenance and Service Guide

Section	Page
Contents	3
Product Description	5
1.1 Features	6
1.2 Resetting the Computer	9
1.3 Power Management	9
1.4 External Components	10
1.5 Design Overview	36
Troubleshooting	37
2.1 Computer Setup	37
2.2 Troubleshooting Flowcharts	43
Flowchart 2.1-Initial Troubleshooting	45
Flowchart 2.2-No Power, Part 1	46
Flowchart 2.3-No Power, Part 2	47
Flowchart 2.4-No Power, Part 3	48
Flowchart 2.5-No Power, Part 4	49
Flowchart 2.6-No Video, Part 1	50
Flowchart 2.7-No Video, Part 2	51
Flowchart 2.8-Nonfunctioning Docking Device (if applicable)	52
Flowchart 2.9-No Operating System (OS) Loading	53
Flowchart 2.10-No OS Loading, Hard Drive, Part 1	54
Flowchart 2.11-No OS Loading, Hard Drive, Part 2	55
Flowchart 2.12-No OS Loading, Hard Drive, Part 3	56
Flowchart 2.13-No OS Loading, Diskette Drive	57
Flowchart 2.14-No OS Loading, Optical Drive	58
Flowchart 2.15-No Audio, Part 1	59
Flowchart 2.16-No Audio, Part 2	60
Flowchart 2.17-Nonfunctioning Device	61
Flowchart 2.18-Nonfunctioning Keyboard	62
Flowchart 2.19-Nonfunctioning Pointing Device	63
Flowchart 2.20-No Network/Modem Connection	64
Illustrated Parts Catalog	65
3.1 Serial Number Location	65
3.2 Computer Major Components	66
3.3 Miscellaneous Plastics Kit	76
3.4 Mass Storage Devices	78
3.5 Miscellaneous	80
3.6 Sequential Part Number Listing	82
Removal and Replacement Preliminaries	91
4.1 Tools Required	91
4.2 Service Considerations	92
4.3 Preventing Damage to Removable Drives	93
4.4 Preventing Electrostatic Damage	94
4.5 Packaging and Transporting Precautions	95
4.6 Workstation Precautions	96
4.7 Grounding Equipment and Methods	96
Removal and Replacement Procedures	99
5.1 Serial Number	100
5.2 Disassembly Sequence Chart	101
5.3 Preparing the Computer for Disassembly	103
5.4 Hard Drive	104
5.5 Computer Feet	108
5.6 Optical Drive	109
5.7 Memory Module	111
5.8 Mini PCI Communications Module	114
5.9 Keyboard Cover	117
5.10 LED Board	120
5.11 Keyboard	122
5.12 Display Assembly	126
5.13 Base Enclosure	131
5.14 Speaker Assembly	137
5.15 Heat Sink	139
5.16 Fan	141
5.17 Processor	143
5.18 Battery Connector Board	145
5.19 Power Connector Board	148
5.20 USB/S-Video Controller Board	150
5.21 Bluetooth Board	152
5.22 System Board	154
Specifications	161
Connector Pin Assignments	179
Power Cord Set Requirements	185
3-Conductor Power Cord Set	185
General Requirements	186
Country-Specific Requirements	186
Screw Listing	189