NEC Express 5800, User Manual

Page: 19 / 719

xix
FOR PROPER OPERATION
Observe the following notes for successful operation of the server. Use of the server ignoring the
notes will cause malfunctions or failures of the server.
■ Install the server in a place that meets requirements for successful operation.
■ Safety indications by color of the parts.
Only green area is available for Hot Swap or Hot Plug operation. To avoid electric shock,
disconnect all AC cords before accessing to others inside the system.
■ Make sure to power off the server before connecting or disconnecting cables between the
server and peripheral devices (except for hot-swappable devices).
■ Verify that the OS and the utility software running on BIOS has stopped and the access lamp
on the disk drive is unlit before turning off the server.
■ Verify that the access LED on the CD/DVD drive is unlit before ejecting the CD/DVD.
■ When you plug the power cord to the power outlet, wait at least 1 minute before powering on
the server.
■ If you power off the server, wait at least 30 seconds before powering it back on.
■ If you unplug the power cord from the outlet, wait at least 30 seconds before plug it back.
■ Do not turn off the server until characters following the "NEC" logo appear on the screen. The
time until the characters appear depends on your system configuration. Approximately, it may
take one to five minutes.
■ Turn off the power and unplug the power cord from the outlet before relocating or cleaning the
server.
■ Clean the server on a regular basis. (See Chapter 7 for cleaning.) Regular cleaning proactively
prevents various failures of the server.
■ Lightning may cause a momentary voltage drop. To prevent this problem, it is recommended to
use of an uninterruptible power supply unit.
■ For the disk which does not conform to the CD or DVD standard, the playback of such a disk
with the DVD drive is not guaranteed.
■ Check and adjust the system clock before the operation if any of the following conditions is
applicable.
– After carriage of the server
–
After storage of the server
– After the server is entered into the pause state under the environmental condition enduring
the server operation (temperature: 10
° C - 35 ° C
*1
, humidity: 10% - 80%).
Check the system clock at the rough rate of once per month. When the system clock is
installed in a system requiring high time precision, it is recommended to use a time server
(NTP server).
If the system clock is remarkably delayed or advanced as the passage of time in spite of