For Proper Operation - NEC Express5800 140Rd-4 User Manual

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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. For details, see Chapter 3, "Setting Up
Your Server."
Do not delete the hard disk partition exclusively provided for maintenance of the server although it may appear on
the OS.
Make sure to power off the server before connecting or disconnecting cables between the server and peripheral
devices.
Verify that the access lamp on the server is unlit before turning off the server or ejecting the floppy disk.
The server management logic on your system board monitors and logs system voltage changes. When plugging the
power cord to the system, you may experience 10 seconds delay from the time you press the POWER switch on the
front panel. This is normal system operation and is required by the server management logic.
When you have just turned off the server, wait at least 30 seconds before turning it back on.
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 three to five minutes.
Turn off the power and unplug the power cord from the outlet before relocating the server.
Some software includes a command to eject the CD-ROM tray. Make sure that the front bezel is removed before
running the command. Running this command with the front bezel installed may cause the CD-ROM tray or the
media to hit against the front bezel, resulting in a failure of 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.
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 to 35°C, humidity: 20% to 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 adjustment, contact your
sales agent to ask maintenance.
Store the unit under the storage condition (temperature: -10°C to 55°C, humidity: 20% to 80%, without
condensation) to allow built-in devices and the unit to operate correctly in the next operation.
Make sure to use optional devices supported by the server. Some non-supported devices may be physically
installed/connected but cause failures of the server as well as a malfunction of the server.
We recommend you use genuine products. Some third-party products claim that they support the server. However,
repair of the server due to a failure or damage resulted from use of such third-party products will be charged.
For the disk which does not conform to the CD standard, the playback of such a disk with the CD drive is not
guaranteed.