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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!
handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or fire, or
expose it to temperatures higher than 140°F (60°C). Do not attempt to recharge the battery.
NOTE:
Do not dispose of batteries, battery packs, and accumulators with 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.
SATA hard drives
Table 3-3
SATA hard drive characteristics
Serial ATA hard drive characteristics
Number of pins/conductors in data cable
Number of pins in power cable
Maximum data cable length
Data interface voltage differential
Drive voltages
Jumpers for configuring drive
Data transfer rate
SMART ATA drives
The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers
have built-in drive failure prediction that warns the user or network administrator of an impending failure or
crash of the hard drive. The SMART drive tracks fault prediction and failure indication parameters such as
reallocated sector count, spin retry count, and calibration retry count. If the drive determines that a failure is
imminent, it generates a fault alert.
SATA hard drive cables
SATA data cable
Always use an HP-approved SATA 6.0 Gbps cable as it is fully backwards compatible with the SATA 1.5 Gbps
drives.
Current HP desktop products ship with SATA 6.0 Gbps hard drives.
SATA data cables are susceptible to damage if overflexed. Never crease a SATA data cable and never bend it
tighter than a 30 mm (1.18 in) radius.
The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive.
This computer contains a lithium battery. There is a risk of fire and chemical burn if the battery is
7/7
15
100 cm (39.37 in)
400 mV to 700 mV
3.3 V, 5 V, 12 V
N/A
6.0 Gbps
SATA hard drives
19
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