and the remainder is assigned to single channel. For optimal speed, the channels should be balanced so that the largest amount of memory is spread between the two channels. If one channel will have more memory than the other, the larger amount should be assigned to Channel A. For example, if you are populating the sockets with one 1GB DIMM, and three 512MB DIMMs, Channel A should be populated with the 1GB DIMM and one 512MB DIMM, and Channel B should be populated with the two 512MB DIMMs. With this configuration, 2GB will run as dual channel and 512MB will run as single channel.

●In any mode, the maximum operational speed is determined by the slowest DIMM in the system.

Installing DIMMs

CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board. If you see an LED light on the system board, voltage is still present.

The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is important to use memory modules with gold-plated metal contacts to prevent corrosion and/or oxidation resulting from having incompatible metals in contact with each other.

Static electricity can damage the electronic components of the computer or optional cards. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object. For more information, refer to Appendix D, Electrostatic Discharge

on page 51.

When handling a memory module, be careful not to touch any of the contacts. Doing so may damage the module.

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.

CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board. If you see an LED light on the system board, voltage is still present.

5.Remove the computer access panel.

6.Locate the memory module sockets on the system board.

WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system components to cool before touching.

16 Chapter 2 Hardware Upgrades

ENWW

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HP dc5800 manual Installing DIMMs
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dc5800 specifications

The HP dc5800 is a compact desktop PC that has gained popularity in the business and educational sectors due to its solid build, affordability, and reliability. Introduced as part of HP’s dc series, it is designed to meet the demands of everyday computing tasks while offering enough power to handle more intensive applications when needed.

One of the standout features of the HP dc5800 is its sleek and functional design. With its small form factor, the dc5800 can easily fit into limited office spaces, providing flexibility for various workspace configurations. The chassis is built for easy accessibility, allowing users to upgrade components without hassle.

The dc5800 is powered by an Intel Core 2 Duo processor, which delivers excellent performance for multitasking and productivity applications. This dual-core architecture allows the system to efficiently handle everyday tasks such as word processing, spreadsheet management, and internet browsing. The pc supports a range of memory configurations, with up to 8GB of DDR2 RAM, ensuring smooth operation even when running multiple applications concurrently.

In terms of storage, the HP dc5800 offers a variety of hard drive options, ranging from traditional hard disk drives (HDDs) to faster solid-state drives (SSDs). This gives users the flexibility to choose based on their performance needs and budget. The system also includes multiple USB ports, an integrated audio solution, and network capability, making it well-suited for a connected office environment.

The onboard graphics solution provides adequate performance for standard business applications and light multimedia use, while the option to add discrete graphics cards allows for enhanced visual performance when required.

Another notable characteristic is the dc5800's energy efficiency. Designed with compliance to Energy Star standards, it consumes less power compared to older models, contributing to lower operational costs and a reduced carbon footprint.

Finally, HP offers a suite of security features, including a user password and the ability to disable USB ports to prevent data leaks, making the dc5800 a suitable choice for organizations that prioritize data security.

In summary, the HP dc5800 is a reliable, efficient, and compact desktop that combines essential features and technologies to support a variety of business and educational applications. Its performance, scalability, and energy efficiency make it a worthwhile investment for those looking for a dependable computing solution.
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