IBM 6644, 6645, 6646 Power Button/Indicator LED and Cable

98 IBM Desktop System HMM

Power Button/Indicator LED and Cable

•Disconnect the LED/power switch cable from the

system board.

•Remove two LEDs from the chassis gently.

•Push two latches to remove the power switch from

the chassis carefully.

•Remove the cable from the clasps on the chassis

and then remove the cable from the chassis.

Contents

Main Page Contents Page Page Page Notices Voltage Supply Switch Settings Safety Information Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Laser Compliance Statement Trademarks Preface General Information Page Product Overview Processors (Machine Type 6644) Processors (Machine Type 6645/ 6646) Pentium III Memory External Ports Hard Disk Drive CD-ROM Drive Multimedia Video Power Management Power Supply Internal Cabling Keyboard Mouse Hardware Interfaces Page Power-On Password Flash (BIOS) Update Procedure BIOS-contained Model Number and Serial Number Page BIOS Configuration/Setup Utility Working with the Setup Menus Starting the Configuration/Setup Utility Changing Parameter Settings Save Settings Restore Settings Loading Default Settings Exiting Setup Viewing System Information, and Product Data Devices and I/O ports USB Boot device Video Setup IDE Drive Setup Audio Setup Network Setup Startup Options Startup Sequence Power-On Self Test Power-On Logos Option Key Display System Security Enhanced Security Enabled/D isabled Security Profile by Device Remote Administration Power-On password Page Administrator Password Adapter ROM Security Asset ID Advanced Setup PCI Control Plug and Play Control Plug and Play Operating System Processor Control Power Management Wake on LAN Page Specifications Dimension (width x depth x height) Weight Environment Electrical input Operating Requirements Check Procedures Introduction Start Page Page Page Index of Symptoms, Messages, Error Codes, or Beeps Page 38 IBM Desktop System HMM NOTE: Check Procedures 39 NOTE: 40 IBM Desktop System HMM NOTE: Check Procedures 41 NOTE: 42 IBM Desktop System HMM NOTE: Check Procedures 43 NOTE: 44 IBM Desktop System HMM . NOTE: Check Procedures 45 NOTE: 46 IBM Desktop System HMM NOTE: Check Procedures 47 NOTE: 48 IBM Desktop System HMM Table 2-3 Error Symptoms List NOTE: NOTE: Check Procedures 49 NOTE: 50 IBM Desktop System HMM NOTE: Check Procedures 51 NOTE: 52 IBM Desktop System HMM NOTE: Check Procedures 53 NOTE: 54 IBM Desktop System HMM NOTE: Troubleshooting Factory-Installed Storage Devi ces Page Page Audio (Not Supported by Diagnostics Program) Page CD-ROM Drive Page Memory Keyboard Mouse Page Power Supply Page Monitor Page Undetermined Problems Page Page Page Page Power-On Self Test Page Diagnostic CD Using the Diagnostic CD Page Diagnostics Program Features Page Repair Information Removals and Replacements Page Processor and Fansink Page Page Page Page Internal Speaker USB Port Page Page Page Page Power Supply Power Button/Indicator LED and Cable Page System Backup Battery Handling ESD-Sensitive Parts Software Recovery Procedure Parts/Test Point Locati ons Introduction System Board Jumpers and Connectors 106 IBM Desktop System HMM System Board Connector Functions NOTE: The white corner of the jumper block represents pin 1. Power Supply Connectors and Voltages Page Network Cards Page Page Page Page Page CD-ROM Drive Rear Panel Connectors and Jumpers DIMM Configurations Parts/Test Point Locations 117 System Board Connector Pin Signals Monitor Port Signals IDE Cable Connector Signals 118 IBM Desktop System HMM Page General Guidelines Parts Catalog 122 IBM Desktop System HMM Abbreviations In this chapter, the following abbreviations are used to identify country and language version: Parts Catalog 123 System Assembly Assembly 1a: System Unit- Interior 124 IBM Desktop System HMM Parts Catalog 125 126 IBM Desktop System HMM Assembly 1b: System Unit - Exterior Parts Catalog 127 Assembly 2: Hard Drive 128 IBM Desktop System HMM Assembly 3: CD-ROM Drive Parts Catalog 129 Assembly 4: Power Cord 130 IBM Desktop System HMM Parts Catalog 131 Assembly 5: Keyboard and Mouse 132 IBM Desktop System HMM FRU Number List 133 Appendix A. FRU Number List 134 IBM Desktop System HMM FRU Number List 135 Page Index A B C D H I K M O