Sun Microsystems 6500 Installation Manual page 57

AC connector
AC power switch
AC Power Switch on the Enterprise 4500
FIGURE 3-6
Caution – Never move the system when the power is on. Doing so may result in
catastrophic disk drive failure. Always power the system off before moving it.
6. Watch the terminal screen for error messages.
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.
Note – If faulty parts are detected and configured out of the working system, you
and the system manager must decide whether to operate the system until
replacement parts arrive, or to halt operation. Also, if a faulty component cannot be
replaced in the field, the entire subassembly (like the system board) must be
replaced.
7. To restart firmware, or if the system hangs, press the CPU reset switch (
on the clock+ board.
Rear view
Chapter 3 Powering the System On and Off
)
FIGURE 3-7
3-11