NEC EXPRESS5800/140He, Service Manual

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4.9 Device Replacement (1)
This section describes the procedures of replacing maintenance devices. After a device is replaced,
turn on the power of the Server and run the test program to confirm that the Server operates
normally.
Refer to the User's guide for how to install or remove maintenance devices.
IMPORTANT: If the hardware configuration is modified,
always provide the system update.
WARNING
Observe the following instructions to work with the server safely.
•
Do not look into the CD-ROM drive.
•
Disconnect the power plug before working with the server.
•
Do not remove the lithium, Ni-CD, and/or NiMH battery
unnecessarily.
CAUTION
Observe the following instructions to work with the server safely.
•
Do not lift the server by yourself.
•
Make sure to complete installation.
•
Do not install or remove the component with the cover being
attached.
•
High temperature
4.9.1 Preparation before Replacement
Prepare the following before a device replacement:
Take proper measures against static electricity including wearing of a wrist strap.
Shut down OS and turn of the DC power.
Disconnect the AC cables from the power units for the AC power-off.
Disconnect all the cables from their mating connectors on the front and rear faces of the
unit.
Make 1 - 2-meter working space at the front, back, left, right, and top of the unit.