System Board | IBM 6646, 6645, 6644 instruction

System Board

•Remove the six screws as shown then remove the system board from the chassis.

Repair Information 99

Image 131

IBM 6646, 6645, 6644 manual System Board

Contents

6644/6645/6646 Hardware Maintenance Service for Service Level aPage Contents Parts/Test Point Locations Check ProceduresDiagnostic Aids Repair Information Appendix A. FRU Number List 133 Index 137 Safety Inspection Guide 119Parts Catalog 121 Page Voltage Supply Range Voltage Switch Setting Voltage Supply Switch Settings To Connect To Disconnect Safety Information Do not Para Desconectar Para Conectar Cuidado XII Page XIV Page XVI Connexion Déconnexion Xviii Vorsicht Kabel anschließen Kabel lösen Achtung Vorsicht Pericolo Per collegare Per scollegare Attenzione Xxiv Page Xxvi Instrucciones de Conexión Desconexión Peligro Xxviii Page Laser Compliance Statement HelpCenter Trademarks Preface Introduction Product Overview General Information Introduction Memory Product OverviewProcessors Machine Type Processors Machine Type 6645/6646 Multimedia External PortsHard Disk Drive CD-ROM Drive Keyboard Power ManagementPower Supply Internal Cabling Interface Hardware Interfaces Cmos Reset Power-On Password Flash Bios Update Procedure Press Y, then press Enter IBM Desktop System HMM BIOS-contained Model Number and Serial NumberPress Y, then press Enter. When the screen shows When the screen shows Starting the Configuration/Setup Utility Bios Configuration/Setup UtilityWorking with the Setup Menus Keys Function Changing Parameter Settings Loading Default Settings Save SettingsRestore Settings Viewing System Information, and Product Data Exiting Setup Devices and I/O ports USB Boot deviceVideo Setup IDE Hard Disk Drive IDE Drive SetupPalette Snooping Video Interrupt Audio Support Audio SetupIDE CD-ROM Drive Startup Sequence Network SetupStartup Options Error Startup Sequence Power-On Self TestPower-On Logos Automatics Power-on Startup Sequence System Security Security Profile by Device Remote AdministrationPower-On password Delete Power-On Password Changing the Power-On PasswordEnter Setup Key in your current password when prompted Asset ID Advanced SetupAdministrator Password Adapter ROM Security Wake on LAN PCI ControlPlug and Play Control Plug and Play Operating System Processor Control Acpi Bios IRQ Environment SpecificationsDimension width x depth x height Weight Operating Requirements Check Procedures Introduction Start Important The drives in the system you are Check Procedures Read the Following Page 007 005 009 Index of Symptoms, Messages, Error Codes, or Beeps Page Bios Error Codes Action/FRU Messages Post Error Codes and Messages List Bios ROM Post Error Codes and Messages List Dimm ROM Post Error Codes and Messages List Post Error Codes and Messages List Bios Error Beeps Action/FRU Bios Error Beeps List Dimm Bios Error Beeps List System Board and Memory Error Symptoms ListError Symptoms Action/FRU Processor / Processor Fan Hard Disk Drive Error Symptoms Action/FRU CD-ROM Drive CNN1 Error Symptoms List USB Ports Error Symptoms Action/FRU Real-Time ClockVideo and Monitor Some or all keys on Keyboard on Keyboard do not work Other Problems Factory-Installed Storage Devices Troubleshooting Select Utility from the menu 003 005 Page 004 Audio Not Supported by Diagnostics ProgramEnsure that Windows 2000 is properly installed End Perform the following under Windows Check Procedures 006 Select Settings, then select Control Panel 008 Replace system board IBM Desktop System HMM CD-ROM DriveTry reading the CD with a known good CD-ROM drive Replace CD-ROM drive End Check Procedures Follow the screen instructions to run the Memory test Memory 002 Keyboard Mouse is functioned normally End MouseTest right left button and check if right left button works Test mouse cursor movement 011 Try with a known good mouse010 Replace the mouse End Disconnect the power cord from the back of the system unit Power Supply Replace the power supply End Check Procedures Pin power connector IDE power connectorReplace the on/off switch cable assembly Is the Screen READABLE? YES, Read AHEAD. NO, GO to Step Monitor Is the Screen Still not READABLE? Dimm Undetermined ProblemsPage IBM Desktop System HMM Diagnostic Aids Introduction Power-On Self Test Page Using the Diagnostic CD Diagnostic CD Using Diagnostic Program from Recovery CD Main Menu Selections Submenu Selections Diagnostics Program Features Diagnostic Program Main Menu Selections Repair Information System Board System Backup Battery Removals and Replacements Cover Processor and Fansink Page IBM Desktop System HMM Memory Dimm Adapter Card Internal Speaker USB Port CD-ROM Drive Page Hard Disk Drive Page Power Supply Power Button/Indicator LED and Cable System Board System Backup Battery Handling ESD-Sensitive Parts Software Recovery Procedure Introduction 104 Parts/Test Point Locations Introduction Jumper/Settings Function System Board Jumpers ConnectorsSystem Board Jumper Settings Connector Function Connect to System Board Connector Functions Pin Voltage Cable Color Power Supply Connectors and VoltagesPower supply Pin Power Connector Pin-hole side view Power Supply Output Pin Assignment +5Vdc Green Ground Black No connect Red Network Cards In. Hard Disk Drive Jumper Settings J50 Description Maxtor Hard Disk Maxtor Hard Disk Drive Jumper SettingsPage BTC Lite-on CD-ROM Front Panel Introduction Function Connect to CD-ROM Drive Rear Panel Connectors and JumpersCD-ROM Drive Rear Panel Connectors and Jumpers Dimm Configurations Pin Signal Name System Board Connector Pin SignalsMonitor Port Signals IDE Cable Connector Signals IBM Desktop System HMM General Guidelines 120 Safety Inspection Guide Safety Inspection Guide General Guidelines Parts Catalog Country Language Version Abbreviations Assembly 1a System Unit- Interior System Assembly Index Number 6644 6645 6646 Bezel Blank Assembly 1b System Unit Exterior Assembly 2 Hard Drive Assembly 3 CD-ROM Drive Assembly 4 Power Cord ANZ US/CAN/ANZ Assembly 5 Keyboard and Mouse IBM Desktop System HMM FRU Number Asm-Index FRU Number List 1a-2 123 FRU Number List IBM Desktop System HMM Index Audio Check Procedure Audio Setup Pbsram Page