HP Workstation xw4100, Сервисное и техническое руководство

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hp workstation xw4100 service and technical reference guide 4–7
removal and replacement procedures
lithium coin cell battery
The battery that comes with the workstation provides power to the real-time clock and has a
minimum lifetime of about three years.
See the “ battery” section in this chapter for instructions on the removal and replacement
procedures.
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WARNING: This workstation 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 140º F (60º C).
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CAUTION: Batteries, battery packs, and accumulators should not be disposed of together with the
general household waste.
4.2 pre-disassembly procedures
The following steps should be taken prior to servicing the workstation:
1. Remove/disengage any security devices that prohibit opening the workstation. If an optional
solenoid hood cover lock is installed, disable it in the software prior to turning off the
workstation.
2. Close any open software applications.
3. Exit the operating system.
4. Remove any diskette or compact disc from the workstation.
5. Turn off the workstation and any peripheral devices that are connected to it.
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CAUTION: Turn off the workstation before disconnecting any cables.
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CAUTION: The cooling fan is off only when the workstation is turned off or the power cable has been
disconnected. The cooling fan is always on when the workstation is in the “On,” “Standby,” or “Suspend”
modes. You must disconnect the power cord from the power source before opening the workstation to
prevent system board or component damage.
6. Disconnect the power cord from the electrical outlet and then from the workstation.
7. Disconnect all peripheral device cables from the workstation.