System Overview 1-33
POST Error Messages
When POST detects an error, it displays an error message on the display unit screen. See Chapter 6
for POST error codes.
IMPORTANT:
Note the messages displayed before consulting with your
service representative. Alarm messages are useful information for
maintenance.
Power Off
Follow the procedure below to power off the server. If the power cord of the server is connected to
a UPS, refer to the manual that comes with the UPS or the manual for the application that controls
the UPS.
IMPORTANT
:
Always allow POST to complete before turning off the
server.
1.
Shut down the OS.
2.
Press the POWER switch on the front of the server.
The POWER/SLEEP LED goes off.
3.
Power off peripheral devices.
Sleep Switch
The SLEEP mode switch on the front of the server is used for saving power.
If the SLEEP mode switch is pressed, then the server enters into the sleep state (the
Power/Sleep LED blinks). In the power saving mode, the memory data and the states of
the jobs are kept unchanged. In addition, the server in the power saving mode can accept
accesses to hard disks from other machines on the network and perform other network
jobs.
NOTE:
Sleep mode requires an operating system that supports its function.
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