005 | IBM 6646, 6645, 6644 guide

NOTE: The CD-ROM drive that comes with system unit should be configured as IDE Secondary Channel Master device.

•Check all power supply voltages, switch, and jumper settings before you replace the system board. (See “System Board Jumpers and Connectors” on page 105.)

•Check the power supply voltages if you have a “system no-power” condition. See “Power Supply Connectors and Voltages” on page 107.

•Check the hard disk and CD-ROM drives jumper settings. See “3.5-In. Hard Disk Drive Jumper Settings” on page 110. Check the voltages of all disk drive power connectors. See “Power Supply Connectors and Voltages” on page 107.

•Correct the parameter settings under IDE Drives in the BIOS Setup. See “Hard Disk Drive” on page 4.

-In the BIOS Setup, check that the correct drive size is set for the flagged drive shown in the System Information. See “Viewing System Infor- mation, and Product Data” on page 15.

•Enter BIOS Setup and load default settings.

If the problem remains, check the continuity on the drive and the cable and replace it if necessary. If that does not fix the problem, replace the system board.

•End.

005 -

•Select Diagnostics from the PC-Doctor diagnostics program main menu. Select and execute Fixed Disks Test if you want to test hard disk drive.

•Select CD-ROM/DVD Drive from the main program menu to test the CD-ROM drive.

Check Procedures 57

Image 89

IBM 6646, 6645, 6644 manual 005

Contents

6644/6645/6646 Hardware Maintenance Service for Service Level aPage Contents Diagnostic Aids Check ProceduresRepair Information Parts/Test Point Locations 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 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 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 Palette Snooping IDE Drive SetupVideo Interrupt IDE Hard Disk Drive Audio Support Audio SetupIDE CD-ROM Drive Startup Sequence Network SetupStartup Options Power-On Logos Power-On Self TestAutomatics Power-on Startup Sequence Error 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 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 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 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 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 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 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 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 Function Connect to CD-ROM Drive Rear Panel Connectors and JumpersCD-ROM Drive Rear Panel Connectors and Jumpers 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