
Troubleshooting System Components
System Unit
Table 6–1 provides information for solving system unit
problems.
Table 6–1 Problems with the System Unit
Symptom
Possible Cause
Suggested Solution
System unit fan is off.
Power cord is not
connected.
Check the power cord connections at both
ends.
Wall outlet may not be
working.
Try a different outlet or try an electrical
device that you know works in that
outlet.
Power cord is faulty.
Replace the power cord.
Power supply or fan has
failed.
Contact your Digital service
representative.
Start-up display contains
an error message.
A module or internal
cable may not be
properly installed, or
may be defective.
Check the seating of modules and cables
depending on the fault indicated by the
error message. (See the VAXstation 4000
Options Installation Guide.)
System does not boot.
Your software is not
installed.
See your software documentation for
installation instructions.
Default recovery action
is set to halt.
Change the default recovery action to
boot the system from the system disk.
See Appendix A.
Software problem.
Contact your Digital service
representative.
6–4 Handling Problems