IBM 2140, 2142 Power-On Password, CMOS Reset

Power-On Password, CMOS Reset

A power-on password denies access to the system by an unauthorized user

when the system is powered on. When a power-on password is active, the

password prompt appears on the screen each time the system is powered

on. The system unit starts after the proper password is entered.

In some cases, you might be required to service a system with an active and

unknown power-on password. To clear a password from the system, first

identify the system CMOS jumper by referring to “System Board

Layout—Type A-1” on page 5-2 and “System Board Layout—Type A-2” on

page 5-5, then follow these steps.

1. Power-off the system unit.

2. Unplug the power cable from the electrical outlet.

Attention: Do not attempt these steps with the power cord plugged into

the electrical outlet. The power supply maintains +5 V dc of auxiliary

power when the power switch is powered off. System damage might

result if the power cord is not unplugged during testing.

3. Locate the power on password jumper on the system board.

4. Move the jumper from pins 1-2 to pins 2-3 to erase the password. See

“System Board Layout—Type A-1” on page 5-2 and “System Board

Layout—Type A-2” on page 5-5.

5. The system detects the change and the password, time, and date are

erased from memory. Power Management settings are also deleted.

(See “Power Management” on page 1-21.)

6. Move the jumper from pins 2-3 to pins 1-2 for normal operation.

7. Plug the power cable into the electrical outlet and power-on the system

unit.

8. Run the Setup Utility to restore the configuration settings. Press Esc to

save with the password disabled.

9. When you are finished servicing the machine, run the Setup Utility to

restore the configuration settings. (You must reset the time, date, and

System Board Type Jumper

System Board Type A-1 Password Jumper JP6

System Board Type A-2 Password Jumper JP3

1-14

Contents

Main Page Page Second Edition (January 1998) Contents iv Page Page might Notices Voltage Supply Switch Settings Positionnement du slecteur de tension viii peut Safety Information Safety Notices (Multi-Lingual Translations) x xii Laser Compliance Statement xiv Page Page Federal Communications Commission (FCC) Notice Federal Communications Commission (FCC) Statement Canadian Department of Communications Compliance Statement xviii Avis de conformit aux normes du ministre des Communications du Canada Canadian Department of Communications Certification Label tiquette d'homologation du ministre des Communications du Canada Load Number (LN): xx Indice de charge (IC): Trademarks Page Preface Page General Information 1-2 Chapter Description Diagnostic Information Diagnostic Aids Noncritical malfunctions 1-4 Repair Information Parts/Test Point Locations Safety Inspection Guide Parts Catalog Part Number Index Page 1-6 System Boards: Security: VESA Local Bus Note: Processors 1-8 Power Supplies (with Power Management Features) Cables Diskette DriveAT-type Multimedia Hard Disk Drive 1-10 Monitors Keyboard Mouse 1-12 Hardware Interfaces Table 1-1. Hardware Interfaces Refresh Rates and Monitor Frequencies Refresh Rates and Monitor FrequenciesType A-1 Refresh Rates and Monitor FrequenciesType A-2 Table 1-2. Vertical Refresh Rates (Hz) Table 1-3. Maximum Vertical Refresh Rates (Hz) Power-On Password, CMOS Reset 1-14 Flash (BIOS) Update Procedure enabled Amplifier Card BIOS 1-16 Amplifier Card BIOS Setting Updating Amplifier Card BIOS 1-18 Setup Utility Using the Setup Utility Starting the Setup Utility Figure 1-1. Setup Utility Screen 1-20 Disk Drives: Making Changes with the Setup Utility Input/Output Ports: Power Management: Plug and Play: 1-22 Plug and Play Adapter Cards Auto Configure Cards Startup Options: Operate without Diskette Drive(s) Operate without Keyboard Diskette Drive Access Using Power Management Utilities 1-24 Scheduler: Suspend: Power Management Utility Features Table 1-4. Power Management Utility Normal Operation POST Error History 1-26 Figure 1-2. POST Error History Page 1-28 Specifications 1-30 does not Operating Requirements A Note About Energy Saver Monitors Check Procedures 2-2 How to Diagnose Combined FRUs: Start POST Error Codes: How to Use Error Messages: (continued) 2-4 (continued) 2-6 (continued) 2-8 Index of Symptoms, Messages, Error Codes, or Beeps Page Table 2-1 (Page 1 of 23). POST and Diagnostics and Utilities Index Symptoms Table 2-1 (Page 2 of 23). POST and Diagnostics and Utilities Index 2-12 Table 2-1 (Page 3 of 23). POST and Diagnostics and Utilities Index Table 2-1 (Page 4 of 23). POST and Diagnostics and Utilities Index 2-14 Table 2-1 (Page 5 of 23). POST and Diagnostics and Utilities Index Table 2-1 (Page 6 of 23). POST and Diagnostics and Utilities Index 2-16 Table 2-1 (Page 7 of 23). POST and Diagnostics and Utilities Index Table 2-1 (Page 8 of 23). POST and Diagnostics and Utilities Index 2-18 Table 2-1 (Page 9 of 23). POST and Diagnostics and Utilities Index Table 2-1 (Page 10 of 23). POST and Diagnostics and Utilities Index 2-20 Table 2-1 (Page 11 of 23). POST and Diagnostics and Utilities Index Table 2-1 (Page 12 of 23). POST and Diagnostics and Utilities Index 2-22 Table 2-1 (Page 13 of 23). POST and Diagnostics and Utilities Index Table 2-1 (Page 14 of 23). POST and Diagnostics and Utilities Index 2-24 Table 2-1 (Page 15 of 23). POST and Diagnostics and Utilities Index Beeps Table 2-1 (Page 16 of 23). POST and Diagnostics and Utilities Index 2-26 Table 2-1 (Page 17 of 23). POST and Diagnostics and Utilities Index Error Codes Table 2-1 (Page 18 of 23). POST and Diagnostics and Utilities Index 2-28 Table 2-1 (Page 19 of 23). POST and Diagnostics and Utilities Index Table 2-1 (Page 20 of 23). POST and Diagnostics and Utilities Index 2-30 Table 2-1 (Page 21 of 23). POST and Diagnostics and Utilities Index Table 2-1 (Page 22 of 23). POST and Diagnostics and Utilities Index 2-32 Table 2-1 (Page 23 of 23). POST and Diagnostics and Utilities Index 2-34 Power Supply Check Procedures 2-35 Figure 2-1. System Board Power Supply Connectors (Bottom View) Figure 2-2. Hard Drive or CD/DVD-ROM End of Power Cable (continued) 2-36 Memory (continued) 2-38 Keyboard (continued) Figure 2-4. Keyboard Connector Voltage Check 2-40 Page 2-42 Mouse Diagnostics and Utilities Device Presence Test (continued) 2-44 Page Media Console Drive Devices 2-46 Factory-Installed Drive Devices If the number of diskette drives shown in the Installed Devices list is not correct: (continued) If any other adapter or device is flagged as 2-48 , run the Setup program. Zip Drive 33.6 Kbps and 56 Kbps DSVD Modem Adapters 2-50 (continued) 2-52 Do not Monitor (continued) 2-54 2-56 Undetermined Problem Check the POST Error History Figure 2-5. POST Error History Example Page Page Diagnostic Aids 3-2 Introduction Power-On Self Test Diagnostics and Utilities CD To load the Diagnostics and Utilities CD: Creating a Diagnostics Bootable Diskette 3-4 To create a bootable diagnostics diskette: To Load the Diagnostics Diskette: Diagnostic Test Programs 3-6 The test programs on the Diagnostics CD include the following features: Error Messages Using the Advanced Diagnostic Test Programs 3-8 Program Navigation Using the First Letter of a Menu Choice Using the Function Keys Command Line Options Hard Disk Drive Boot Error 3-10 A hard disk drive boot error (error codes 1996 and I999030X) can be caused by the following: File Editor before Utility Menu Display Self Test 3-12 Display Under Power Management Page Repair Information Removals and ReplacementsMachine Type 2140, 2142 4-2 Page Page 20203.5-In., 5.25-In. Cage Page 2030Media Console Figure 4-3. Console back cover removal Page Page Page Page 2040Power Supply 2051Memory (DIMM) 2080Lithium Battery 4-14 Figure 4-12. Lithium Battery 2090System Board Handling ESD-Sensitive Parts 4-16 Do not touch its pins. Home Director Home Director Technical Service and Support How Home Director Works Home Director Troubleshooting 4-18 Software Installation Procedure 4-20 Parts/Test Point Locations System Board LayoutType A-1 5-2 Figure 5-1. System Board Type A-1 System Board LocationsType A-1 Pentium MMX Processor SpeedType A-1 5-4 Figure 5-2. Pentium MMX Processor SpeedType A-1 System Board LayoutType A-2 Figure 5-3. System Board Type A-2 System Board LocationsType A-2 5-6 Processor Bus FactorType A-2 Figure 5-4. Pentium II Processor SpeedType A-2 Factory-Installed Modem Card 5-8 Figure 5-5. 33.6 Kbps Modem Card Figure 5-6. 56 Kbps Modem Card Hard Disk Drive Jumper Settings 5-10 Primary Hard Disk Drive IDE Local Bus Connector Secondary Hard Disk Drive Connector Page Page CD/DVD-ROM Drive Jumper Settings Figure 5-11. CD/DVD-ROM Drive Jumper Settings 5-14 Zip Drive ATAInterface Figure 5-12. Zip Drive Jumper Settings Detachable Monitor I/O Signal Cable Connector Test Points System board Monitor end of cable (on some models) Figure 5-13. Detachable Monitor I/O Signal Cable Connectors Test each connector between the following pins: Media Console Cable 5-16 125 26 50 Figure 5-14. Media Console Cable Connector Table 5-1. Media Console Pin Numbering System Board Connector Specifications Monitor/Signal Parallel Port Page Parts/Test Point Locations 5-19 Power Cable Connector Power Cable Connector 3.3 V dc Hard Disk Cable Connectors 5-20 ACTIVE Safety Inspection Guide Page Parts Catalog Assemblies (Service Level A) 7-2 Catalog Section Assembly 1: Machine Type 2140 System Unit - Exterior (SL-A) Page Assembly 2: (continued) 7-6 Assembly 3: Machine Type 2142 System Unit - Exterior (SL-A) Page Assembly 4: (continued) 7-10 Page Assembly 5: (continued) 7-12 Assembly 6: Media Console (Type 2142) Assembly 6: (continued) 7-14 Page Assembly 7: (continued) 7-16 Assembly 8: Monitor and Power Cord (Linecord) 7-18 Assembly 9: Keyboard and Mouse 7-20 Page Assembly 10: Software 7-22 Part Number Index 8-2 Page Page Appendix A. Online Support Information A-2 Appendix B. Model/Monitor Configurations and FRU Part Numbers Table B-1. U.S. and Canada Machine Types 2140 and 2142 (Factory-Installed Parts). B-2 Appendix B. Model/Monitor Configurations and FRU Part Numbers B-3 Table B-2. Asia-Pacific-North Machine Types 2140, 2142 (Factory-Installed Parts) Table B-3. Asia-Pacific-South Machine Types 2140, 2142 (Factory-Installed Parts) B-4 Appendix B. Model/Monitor Configurations and FRU Part Numbers B-5 Table B-4. EMEA Machine Types 2140 and 2142 (Factory-Installed Parts). Table B-5. Latin America Machine Type 2140, 2142 (Factory-Installed Parts) B-6 Table B-6. Monitor-to-FRU Index and Monitor Frequency Settings Page Index Numerics A B C D E X-2 F G H N O P R X-4 S T U Page IBM