Power Supply | IBM 6645, 6644, 6646 guide

Power Supply

•Disconnect the power supply connector from the system board.

•Remove the three screws from the chassis as shown here.

•Remove the power supply from the chassis.

Repair Information 97

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IBM 6645, 6644, 6646 manual Power Supply

Contents

6644/6645/6646 Hardware Maintenance Service for Service Level aPage Contents Diagnostic Aids Check ProceduresRepair Information Parts/Test Point Locations Safety Inspection Guide 119 Parts Catalog 121Appendix A. FRU Number List 133 Index 137 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 Processors Machine Type Product OverviewProcessors Machine Type 6645/6646 Memory Hard Disk Drive External PortsCD-ROM Drive Multimedia Power Supply Power ManagementInternal Cabling Keyboard Interface Hardware Interfaces Cmos Reset Power-On Password Flash Bios Update Procedure BIOS-contained Model Number and Serial Number Press Y, then press Enter. When the screen showsPress Y, then press Enter IBM Desktop System HMM When the screen shows Bios Configuration/Setup Utility Working with the Setup MenusStarting the Configuration/Setup Utility Keys Function Changing Parameter Settings Save Settings Restore SettingsLoading Default Settings Viewing System Information, and Product Data Exiting Setup USB Boot device Video SetupDevices and I/O ports Palette Snooping IDE Drive SetupVideo Interrupt IDE Hard Disk Drive Audio Setup IDE CD-ROM DriveAudio Support Network Setup Startup OptionsStartup Sequence Power-On Logos Power-On Self TestAutomatics Power-on Startup Sequence Error Startup Sequence System Security Remote Administration Power-On passwordSecurity Profile by Device Changing the Power-On Password Enter Setup Key in your current password when promptedDelete Power-On Password Administrator Password Advanced SetupAdapter ROM Security Asset ID Plug and Play Control Plug and Play Operating System PCI ControlProcessor Control Wake on LAN Acpi Bios IRQ Dimension width x depth x height SpecificationsWeight Environment 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 Error Symptoms List Error Symptoms Action/FRU Processor / Processor FanSystem Board and Memory Hard Disk Drive Error Symptoms Action/FRU CD-ROM Drive CNN1 Error Symptoms List Error Symptoms Action/FRU Real-Time Clock Video and MonitorUSB Ports 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 Ensure that Windows 2000 is properly installed End Audio Not Supported by Diagnostics ProgramPerform the following under Windows Check Procedures 004 006 Select Settings, then select Control Panel 008 CD-ROM Drive Try reading the CD with a known good CD-ROM driveReplace system board IBM Desktop System HMM Replace CD-ROM drive End Check Procedures Follow the screen instructions to run the Memory test Memory 002 Keyboard Test right left button and check if right left button works MouseTest mouse cursor movement Mouse is functioned normally End 010 Try with a known good mouseReplace the mouse End 011 Disconnect the power cord from the back of the system unit Power Supply Pin power connector IDE power connector Replace the on/off switch cable assemblyReplace the power supply End Check Procedures 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 System Board Jumpers Connectors System Board Jumper SettingsJumper/Settings Function Connector Function Connect to System Board Connector Functions Power supply Pin Power Connector Pin-hole side view Power Supply Connectors and VoltagesPower Supply Output Pin Assignment Pin Voltage Cable Color +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 CD-ROM Drive Rear Panel Connectors and Jumpers CD-ROM Drive Rear Panel Connectors and JumpersFunction Connect to Dimm Configurations Monitor Port Signals System Board Connector Pin SignalsIDE Cable Connector Signals Pin Signal Name 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