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Chapter 4 97
Field Replaceable Units
FRU Removal and Replacement
FRU Removal and Replacement
The procedures in this section describe how to remove field replaceable units (FRUs).
Observe any notices and prerequisites before removing a FRU. Replacement is the reverse
of removal, unless noted.
Before performing these procedures, observe the following precautions:
Step 1. Power off the system, the monitor, and any peripheral devices.
NOTE
There is no need to manually shutdown the HP-UX operating system on the
workstation before switching it off. When the front panel power switch is
pressed to off, the workstation automatically shuts down the operating
system before terminating the power. Wait for the system to completely
shutdown and power off before disconnecting the power cord.
CAUTION
Unplugging the power cord while HP-UX is running can damage the system
files. Do not remove the left side panel before powering down the workstation.
Remember that the left side panel is integral to the power supply safety
interlock.
Step 2. Unplug the workstation power cord and the power cord of any peripheral devices
from AC wall outlets.
Step 3. Unplug the system unit power cord from the AC input connector.
Step 4. Disconnect any external cables from the connectors on the front and rear of the
system unit.
Step 5. Attach a static-grounding wrist strap to your wrist and a location on the system
chassis that is bare metal. Attach the sticky end of the wrist strap to bare metal
on the rear panel of the workstation.
Step 6. Lay the workstation on a flat stable surface, such as a table top or floor. To protect
against scratches, remove miscellaneous debris and preferably use an ESD mat
to cushion the workstation.
CAUTION
Follow normal ESD, anti-static precautions when handling the workstation
or any of its components. Failure to do so can cause component degradation or
failure.
Step 7. If installed, remove any locking device from the security loop on the rear of the
system unit. To access the storage media, the front panel security lock must be in
the unlock position.