HP Pro All-in-One 3520 Specifications download pdf (Page 23)

Hard Drives

Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This

applies to failed drives as well as replacement spares.

●

If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective

packaging and label the package “Fragile: Handle With Care.”

●

Do not remove hard drives from the shipping package for storage. Keep hard drives in their

protective packaging until they are actually mounted in the CPU.

●

Avoid dropping drives from any height onto any surface.

●

If you are inserting or removing a hard drive, turn off the computer. Do not remove a hard drive

while the computer is on or in standby mode.

●

Before handling a drive, ensure that you are discharged of static electricity. While handling a

drive, avoid touching the connector. For more information about preventing electrostatic

damage, refer to

Electrostatic Discharge Information on page 9

● Do not use excessive force when inserting a drive.

● Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic

fields such as monitors or speakers.

Lithium Coin Cell Battery

The battery that comes with the computer provides power to the real-time clock and has a minimum

lifetime of about three years.

See the appropriate removal and replacement chapter for the chassis you are working on in this

guide for instructions on the replacement procedures.

WARNING! This computer contains a lithium battery. There is a risk of fire and chemical burn if the

battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose

in water or fire, or expose it to temperatures higher than 140ºF (60ºC). Do not attempt to recharge the

battery.

NOTE: Batteries, battery packs, and accumulators should not be disposed of together with the

general household waste. In order to forward them to recycling or proper disposal, please use the

public collection system or return them to HP, their authorized partners, or their agents.

Service Considerations 15

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HP Pro All-in-One 3520 Specifications Page 23