Installation guide
xi
Preface
Intended Audience
This manual is written for the Digital service engineer.
Document Structure
This manual has eight chapters:
• Chapter 1, Registers, lists the registers in this system and provides
an illustration of each.
• Chapter 2, Addressing, provides information on address space lay-
out, addresses, and device types.
• Chapter 3, Console, contains a list of the console commands, syntax,
and error messages.
• Chapter 4, Diagnostics, shows examples of running diagnostics on
adapters and device controllers.
• Chapter 5, FRU Locations, identifies the field-replaceable units in
the platform.
• Chapter 6, Controls and Indicators, discusses the controls and in-
dicators on various components of the system.
• Chapter 7, Restoring Corrupted ROMs, provides instructions for
restoring corrupted EEPROMs and for updating corrupted firmware.
• Chapter 8, System Errors, includes the machine check frame and
the system parse trees.










