Warnings And Cautions - IBM @server xSeries 343 Product Manual

Warnings and Cautions

These warnings and cautions apply whenever you remove covers of the system. Only a technically
qualified person should integrate, configure, or service the system.
WARNINGS
Power Button: Shutting down the server with the Power button on the
front of the chassis DOES NOT remove all power from the system. To
remove all power from system, you must also unplug/disconnect the power
cord(s) from the system. Unplugging/disconnecting the power cord(s) from
the system removes the +5 Volt standby power that is present when the
server is powered down.
Hazardous conditions, power supply: Hazardous voltage, current, and
energy levels are present inside the power supply. There are no
user-serviceable parts inside the power supply; technically qualified
personnel should do servicing.
Hazardous conditions, devices, and cables: Hazardous electrical
conditions may be present on power, telephone, and communication cables.
Turn off the system and unplug/disconnect the power cord(s),
telecommunications systems, networks, and modems attached to the system
before opening it. Otherwise, personal injury or equipment damage can
result.
Hazardous conditions, processors and power supplies: Thermal
conditions may be present in the Processor/Memory Complex. Allow all
fans to continue to run until they shut down on their own after power has
been turned off. After the fans stop, you can unplug/disconnect the power
cord(s).
CAUTIONS
Electrostatic discharge (ESD) and ESD protection: ESD can damage
disk drives, boards, and other parts. We recommend that you do all procedures
in this section only at an ESD-protected workstation. If one is not available,
provide some ESD protection by wearing an anti-static wrist strap attached to
chassis ground (any unpainted metal surface) on your system when handling
parts.
ESD and handling boards: Always handle boards carefully. They can be
extremely sensitive to ESD. Hold boards only by their edges. After removing a
board from its protective wrapper or from the system, place it on a grounded
surface free of static electricity. Do not slide boards over any surface.
Cooling and airflow: For proper cooling and airflow, always install the
chassis covers before turning on the system. Operating the system without the
covers in place can damage system parts.
xSeries 343 Product Guide
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