Diagnostics - Digital Equipment 300 Series AXP Reference Manual

Before You Begin
Some console commands control system devices and memory. Do
CAUTION:
Control of not use console commands without fully understanding the effect
they can have on your DEC 3000 Model 300 Series AXP system.
System Devices
For instance, some advanced-level commands, such as
and
Using the
memory containing the actual console firmware could either
hang the system or prevent it from restarting after it is turned
off.
If you are not sure about using console commands, ask your
system manager for help.

Diagnostics

Three You can access three different diagnostic environments:
Diagnostic
1. Power-up diagnostic environment
Environments
2. Customer (console) diagnostic environment
4–6
let you manipulate nonvolatile and system memory.
set
deposit command to place a value in a location of
This mode applies only when power is first applied to the
system, and before the system reaches console level.
The term startup, as used in text, describes the starting
up of your system from console mode.
For customer-run (console) diagnostics, first shut down the
operating system. If the console is not displaying the
then press the halt button on the back of the system unit.
Type the following command:
>>> set diag_s[ection] 1
Note
Return
deposit
,
>>>