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Hard Disk Drives; Lithium Coin Cell Battery - HP Z400 Maintenance And Service Manual

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Hard disk drives

Hard disk drives are fragile, precision components. Avoid subjecting them to physical shock and
vibration. The following guidelines apply to all drives, including failed drives, replacement drives, and
Do not remove hard disk drives from the shipping package for storage. Keep hard disk drives in
their protective packaging until they are mounted in the workstation.
Avoid dropping hard disk drives from any height.
If you are inserting or removing a hard disk drive, power off the workstation. Do not remove a
hard disk drive while the workstation is powered on or in standby mode.
Before handling a drive, be sure that you discharge static electricity. While handling a drive,
avoid touching the connector. For more information about preventing electrostatic damage, see
ESD information on page
To prevent possible ESD damage when the drive is installed, connect the drive power cable before
connecting the data cable. This discharges accumulated static electricity through the drive power
cable to the workstation chassis.
When inserting a drive, do not use excessive force.
Avoid exposing a hard disk drive to liquids, temperature extremes, or products with magnetic
fields such as monitors or speakers.

Lithium coin cell battery

The battery included with the workstation provides power to the real-time clock and has a lifetime of
about three years.
For instructions on battery removal and replacement, see
the battery is handled improperly. Do not disassemble, crush, puncture, short the external contacts,
dispose of in water or fire, or expose the battery to temperatures higher than 60° Centigrade (140°
Do not dispose of batteries, battery packs, and accumulators with general household waste.
Chapter 5 Replacing components
This workstation contains a lithium battery. There is a risk of fire and chemical burn if
Battery on page


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