Preface - Compaq AlphaServer DS20 Service Manual

Intended Audience
This manual is written for the customer service engineer.
Document Structure
This manual uses a structured documentation design. Topics are organized into small
sections for efficient online and printed reference. Each topic begins with an abstract,
followed by an illustration or example, and ends with descriptive text.
This manual has four chapters and three appendixes, as follows:
•
Chapter 1, System Overview, introduces the Compaq AlphaServer DS20
system. It describes each system component.
•
Chapter 2, Troubleshooting, describes troubleshooting during power-up and
booting, as well as the test command.
•
Chapter 3, Error Registers, describes the error registers used to hold error
information.
•
Chapter 4, Removal and Replacement, describes removal and replacement
procedures for field-replaceable units (FRUs).
•
Appendix A, Halts, Console Commands, and Environment Variables,
summarizes the commands used to examine and alter the system configuration.
•
Appendix B, Managing the System Remotely, describes how to use the Remote
Console Manager (RCM) to monitor and control the system remotely.
•
Appendix C, Firmware Update, describes how to update system firmware.

Preface

ix