Silicon Graphics Origin200 Owner's Manual page 111

Turning the System On and Off
The status LED on the front of the system blinks, then goes out when the system
is powered off.
If you are going to move the system, wait a few more seconds to allow the
internal disks to stop spinning.
If you wish to leave the system controller active (so that you can turn the system
on remotely through the AUX port), do not continue to the next step (turning
off the master power switch).
5. If you wish to turn off all power to the system (for example, to service it), turn off
the master power switch at the rear of the server, as shown in Figure 4-5.
If you are power-cycling the system, wait 7 seconds after turning off the main
power switch before you turn it back on again. Otherwise, the module system
controller may not initialize properly.
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