Handling Precautions (For Proper Operations) - NEC Express5800 Series User Manual

Handling precautions
Be sure to observe the following precautions for the proper functioning of the server. Ignoring the precautions
may cause server malfunction or failure.
● General
– Do not block air vents of the CPU blades, Blade Enclosures, power supply units, and additional FAN
units.
– The CPU blade is extremely sensitive to static electricity. For static notes, refer to Chapter 2 (1.2
Anti-static Measures).
– The CPU blade and internal option devices contain precision component that is easily affected by
drastic temperature change. If the device is used after storage or relocation, make sure that the
device is fully adapted to the operating environment.
– Do not touch the CPU blade terminals or on-board components by a bare hand nor place the CPU
blade directly on the desk.
– It is recommended to use options provided by NEC. Some memory devices and Solid State Drives of
other vendors are designed to be available for the server. If such an option causes the server to be
defected or damaged, you will be charged for the repair within the warranty period.
– Turn off the cellular phone or pager around the server. Radio interference may cause malfunctions of
the server.
● CPU blade
– N8400-131F/134F/135F/137F CPU blade should be installed in the Blade Enclosure
(SIGMABLADE).
– Install or remove CPU blades one by one.
– Hold the portions covered with metal plates when a CPU blade is installed or removed. To carry a
CPU blade, put it into the case in which the CPU blade was contained at the purchase and pack it
into the package.
– Check and adjust the system clock before the operation if any of the following conditions is
applicable.
 After transportation
 After storage
 After the server is used following a period of disuse, in which storage conditions did not conform to
those that guarantee server operations (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 representative to ask maintenance.
– Store the unit under the storage condition (temperature: –10°C to 55°C, humidity: 20% to 80%,
without condensation).
– Turn on the power of each CPU blade by pressing the POWER switch or the remote power-on
operation after the period of 60 seconds or longer has passed from the supply of power (the POWER
lamp of the CPU blade goes on amber). The power of the CPU blade may not be turned on if the
for proper operations
(
Express5800/B120d, B110d User's Guide
Precautions for Use (Be Sure to Read)
)
15