Sun Microsystems Ultra Enterprise 3000, Installation Manual

Page: 38 / 48

3-4 Ultra Enterprise 3000 System Installation Guide—May 1996
3
Warning – Never move the system when the power is on. Failure to heed this
warning may result in catastrophic disk drive failure. Always power the
system off before moving it.
Figure 3-2 AC Power and Clock Board
6. Watch the terminal screen for error messages from the firmware diagnostic
program.
POST (power-on-self test) tests subassemblies and some interface paths
between subassemblies.
At the conclusion of testing, firmware automatically attempts to reconfigure
the system, omitting any parts of the system that have failed diagnostics.
If there are no faults, or if firmware completes a successful reconfiguration
in response to detected faults, the system boots.
!
AC connector
AC power switch
Clock board