Removing Lh 3 Covers And Components - HP D7171A - NetServer - LPr Manual

2 Removing LH 3 Covers and
Components
CAUTION
Never operate this NetServer without first installing all
covers and the front bezel. Operating the system without all
covers in place reduces critical cooling airflow over some
components, such as hard disk drives and processor modules.
Operating the system without all covers in place may result in
failure of these components.
The HP NetServer LH 3 must have its covers in place for
proper cooling. When you open the HP NetServer while it is
operating, do not run it for more than 3 minutes. Do not
operate the HP NetServer for more than 2 minutes without a
working fan mounted immediately behind the power supplies.
Failure to observe these precautions may result in thermal
damage to the HP NetServer.
WARNING
Before removing the cover, always disconnect the power cord
and unplug telephone cables. Disconnect the power cord to
avoid exposure to high energy levels that may cause burns
when parts are short-circuited by metal objects, such as tools
or jewelry. Disconnect telephone cables to avoid exposure to
shock hazard from telephone ringing devices.
Note that the power switch does not turn off the standby
power. Disconnect the power cord to turn off standby power.
If the backlight on the LCD display is on, standby power is
still on.
CAUTION
Wear a wrist strap and use a static-dissipating work surface
connected to the chassis at all times.
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