NEC Express 5800 User Manual page 23

Do not connect any interface cable with the power cord of the server plugged to
a power source.
Make sure to power off the server and unplug the power cord from a power
outlet before installing/removing any optional internal device or
connecting/disconnecting any interface cable to/from the server. If the server is
off-powered but its power cord is plugged to a power source, touching an
internal device, cable, or connector may cause an electric shock or a fire
resulted from a short circuit.
Do not use any non-designated interface cable.
Use only interface cables designated by NEC; identify which component or
connector to attach beforehand. If you use a wrong cable or make a wrong
connection, there is a risk of short-circuit that could lead to a fire.
You also have to observe the following prohibitions about handling and
connecting interface cables:
Do not use any damaged cable connector.
Do not step on the cable.
Do not place any object on the cable.
Do not use the equipment with loose cable connections.
Before Starting Setup
CAUTION
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