B Battery Replacement

The battery that comes with the computer provides power to the real-time clock. When replacing the battery, use a battery equivalent to the battery originally installed in the computer. The computer comes with a 3-volt lithium coin cell battery.

WARNING! The computer contains an internal lithium manganese dioxide battery. There is a risk of fire and burns if the battery is not handled properly. To reduce the risk of personal injury:

Do not attempt to recharge the battery.

Do not expose to temperatures higher than 60°C (140ºF).

Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.

Replace the battery only with the HP spare designated for this product.

CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings. When the battery is removed or replaced, the CMOS settings will be cleared. Refer to the Computer Setup (F10) Utility Guide for information on backing up the CMOS settings.

Static electricity can damage the electronic components of the computer or optional equipment. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object.

NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket. The lithium battery is only used when the computer is NOT connected to AC power.

HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable batteries. For more information about recycling programs, go to http://www.hp.com/ recycle.

1.Remove/disengage any security devices that prohibit opening the computer.

2.Remove all removable media, such as diskettes or compact discs, from the computer.

3.Turn off the computer properly through the operating system, then turn off any external devices.

4.Disconnect the power cord from the power outlet and disconnect any external devices.

WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.

5.Remove the computer access panel.

6.Locate the battery and battery holder on the system board.

NOTE: On some computer models, it may be necessary to remove an internal component to gain access to the battery.

20 Appendix B Battery Replacement

ENWW

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HP dx7400 manual Battery Replacement
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dx7400 specifications

The HP dx7400 is a desktop computer designed primarily for business environments, providing a balance of performance, reliability, and scalability. Launched in the late 2000s, the dx7400 is tailored to meet the demanding needs of office tasks and professional applications while also being an economical option for enterprises.

One of the standout features of the HP dx7400 is its customizable performance. It is equipped with a range of Intel processors, typically offering options from the Intel Core 2 Duo to more potent options depending on configuration. This flexibility allows businesses to select a processor that best fits their workload requirements, whether for basic office tasks, demanding data processing, or multitasking between applications.

The HP dx7400 also emphasizes expandability. The system is designed with ample expansion slots that allow for additional memory, storage drives, and graphics cards. This expandability ensures that businesses can upgrade the machine as their needs grow without requiring a complete system overhaul. The desktop can support up to 8GB of DDR2 RAM, which is beneficial for running multiple applications simultaneously or handling memory-intensive tasks.

In terms of storage, the dx7400 provides various hard drive options, ranging from traditional HDDs to SATA drives, ensuring users have enough space for files, applications, and backups. The availability of different configurations means that organizations can select drives that offer a balance between speed and storage capacity.

The HP dx7400 is built with connectivity in mind. It provides multiple USB ports, including USB 2.0 and options for legacy connections like serial and parallel ports, catering to a broad array of peripherals and devices. The inclusion of audio and video outputs also makes it a suitable choice for presentations and multimedia projects.

Security is another crucial aspect of the HP dx7400. It often features tools like HP ProtectTools Security Suite, which helps safeguard sensitive data and provides secure access to systems. In addition to hardware security features, the dx7400 integrates various software solutions aimed at data protection.

Lastly, the compact design of the HP dx7400 enables it to fit well in a variety of office spaces. Its straightforward design ensures it can be easily integrated into an existing workplace setup without taking up too much space.

Overall, the HP dx7400 stands out as a versatile, reliable desktop solution that was engineered to cater to the needs of modern business operations, providing essential features for productivity and expandability for future growth.
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