Preliminary Troubleshooting Of System Problems - Digital Equipment 300 Series AXP Reference Manual

If you are having trouble with your entire system, locate the
System
Problems problem in Table 7–1.
Table 7–1 Preliminary Troubleshooting of System Problems
Symptom
Window display does not
appear on the screen.
(System does not boot.)
Power indicator light is off
and fans are not running.
Power indicator light is
off, but fans are running.
Power-up graphics display
does not appear after 1
minute and the diagnostic
display lights display

.
Power-up graphics display
does not appear and the
diagnostic display lights

display .
No diagnostic display
lights after startup.
Startup display contains
question marks or an error
message.
Possible Cause
Your software is not installed.
Power cord is not connected.
Defective power supply.
—
Monitor is not turned on.
SROM jumper setting is
incorrect.
Possible defective system
module, or defective cable.
Possible system error.
Loose cable connections.
Using the Troubleshooting Tables
Corrective Action
See your software documentation
for installation instructions.
System startup has failed. Check
the status of the diagnostic display
lights, described in Chapter 8, or
refer to the Service Guide or your
Digital service representative.
Check the power cord connections
at both ends.
Contact your Digital service
representative.
Contact your Digital service
representative.
Turn on the monitor. See Chapter 8
for additional corrective actions.
Contact your Digital service
representative.
See Chapter 2 for information on
the location of the system module
and cables. Reseat the system
module, ensure that all cables have
a tight fit in their connectors, and
restart the system.
Refer to Chapter 4 for information
on running diagnostic tests.
(continued on next page)
7–3