Troubleshooting Your System
AlphaServer 1000A Rackmount Owner’s Guide 8-7
__________________________ Note _____________________________
A serial loopback connector (12-27351-01) must be installed on the COM2
serial port for the
kill_diags
command to successfully terminate system
tests.
____________________________________________________________
The show_status Command
The
show_status
command reports one line of information per executing diagnostic.
Many of the diagnostic tests run in the background and provide information only if an
error occurs. Use the
show_status
command to display the progress of diagnostics.
Power Problems
Table 8–3 describes how to troubleshoot the system when there is no power at the system
enclosure.
Table 8–3: Troubleshooting Power Problems
Symptom
Action
No ac power
Check the power source and power cord.
Check that the system cover is properly secured. A safety
interlock switch shuts off power to the system if the cover is
removed.
There is ac power present, but
system does not power on.
Check the On/Off switch on the operator control panel.
Check that the ambient room temperature is within
environmental specifications (10–40°C, 50–140°F).
Check that cable connectors on the system board are
properly connected.
Check that the internal power supply cables are plugged in at
the right place on both the power supply and system
backplane.
Check the power supply fuse and replace, if necessary.
Power supply shuts down after
approximately 10 seconds (fan
failure).
Using a flashlight, look through the front (under the OCP) to
check if the fan is spinning at startup. If the fan does not
spin, replace it. If the replacement fan does not spin, replace
the power supply.
Console Problems
Table 8–4 describes how to troubleshoot the system when, at startup, the console terminal
does not display the startup screen, or the startup screen displays error messages.
