System Configuration And Setup; Functional Description - DEC 4000 AXP Service Manual

System Configuration and Setup
This chapter provides a functional description of the system components, as well
as system configuration and setup information.
• Section 6.1 provides a description of the major components and subsystems
that make up the DEC 4000 system.
• Section 6.2 describes how to examine the system configuration using console
commands.
• Section 6.3 describes how to set and examine environment variables.
• Section 6.4 describes how to set and examine DSSI parameters.
• Section 6.5 describes how to set console line baud rates.

6.1 Functional Description

The DEC 4000 AXP system is a department-level system that uses the custom
VLSI CPU chip (DECchip 21064 microprocessor) based on the Alpha APX RISC
architecture. The system is housed in a BA640 enclosure and includes the
following components:
• Card cage that holds:
– Up to 2 CPU modules
– One I/O module
– Up to 4 memory modules
– Up to 6 Futurebus+ modules
System Configuration and Setup 6–1
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