Handling Precautions - NEC Express5800/R310g-E4 User Manual

Handling precautions

Be sure to observe the following precautions to ensure that the server functions properly. Ignoring these
precautions may cause server malfunction or failure.
Installation site

Install the server in an appropriate place. See Chapter 2 Preparations (2. Installation and Connection).

Before connecting or removing the cable to or from a peripheral device that does not support the Plug and
Play function, make sure that the power to the server is off and remove the power cord from the outlet.

Switch off all cell phones in the proximity of the server. Electric waves from these devices can cause the
server to malfunction.

Regularly clean the server to prevent failure. See Chapter 1 Maintenance (2. Daily Maintenance) in
"Maintenance Guide" for information about cleaning.

When storing the server for a long time, be sure to satisfy the storage environment conditions (temperature:
–10 to 55°C, humidity: 20 to 80%, non-condensing).

Turn off the server and unplug the power cord before moving it.

In the following cases, check and adjust the system clock before operation.
After transportation
―
After storage
―
After the server is used following a period of disuse, in which the storage conditions did not conform
―
to the conditions that guarantee server operations (temperature 10 to 40°C, humidity 20 to 80%)

Check the system clock approximately once per month. Use of a time server (NTP server) is recommended
if highly accurate timing is required by the system.

The voltage may drop momentarily, for example, due to a lightning strike. To take measures against this, it
is recommended to use an uninterruptible power supply (UPS).
Power supply

Be sure to use this server within the rated current and voltage.

Power supply cord is not provided as a standard accessory with this server. Be sure to use power supply
cord specified by our company based on the power supply voltage and current depending on the
environment for use.

An uninterruptible power supply (UPS) is used to prevent momentary voltage drops.
The server does not support UPS connection through the serial port (RS-232C) or power control by
PowerChute Plus.
Power-on/Power-off

Do not turn on the server after connecting the power cord to the outlet before the Module POWER LED on
the front of the device (see Chapter 1 (4.8 LEDs)) blinks in green (90 seconds).

If an uninterruptible power supply (UPS) is connected, set the schedule to wait for at least 90 seconds
before turning on the server.

Do not power off or reset the server, nor disconnect the power cord before POST completes.

Make sure that the DISK ACCESS LED or Optical DISK ACCESS LED is off before turning off the power or
ejecting media from a hard disk drive or an optical disk.

Allow 30 seconds or more to elapse when turning ON the power of the unit again after turning it to OFF.

When disconnecting power cord from the outlet, wait at least 30 seconds before connecting the power cord
again.

For stable operation, it is recommended to restart the OS after the system has been duplexed.
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Express5800/R310g-E4, R320g-E4, R320g-M4 User's Guide
Warnings and Additions to This Product and Document