with the least amount of memory describes the total amount of memory assigned to dual channel 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.

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 48.

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.

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 DX7500 manual Installing DIMMs
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DX7500 specifications

The HP DX7500 is a robust desktop computer that's designed primarily for small to medium-sized businesses looking for a reliable and efficient computing solution. Built to handle everyday tasks with ease, this model showcases a combination of performance, flexibility, and reliability.

One of the key features of the HP DX7500 is its powerful Intel processor lineup. Depending on the specific configuration chosen by users, potential options range from the capable Intel Pentium series to the more robust Intel Core 2 Duo or Core 2 Quad processors. This versatility ensures that users can select the appropriate performance level to meet their needs, whether for basic office applications or more demanding computational tasks.

The DX7500 also supports various memory options, offering up to 8GB of DDR2 RAM, which guarantees smooth multitasking and efficient performance for applications commonly used in business environments, such as spreadsheets, databases, and presentation software. Additionally, the unit features multiple storage options, accommodating up to a 1TB hard drive, allowing ample space for large files, software applications, and data storage.

In terms of connectivity, the HP DX7500 comes equipped with a variety of essential ports, including USB 2.0 ports for fast data transfer, Ethernet ports for reliable network connections, and audio jacks for speaker and microphone use. This ensures that users can easily connect to peripherals and networks, thus enhancing overall productivity.

The desktop’s design boasts a sleek and compact form factor, making it suitable for desk setups where space is at a premium. Its reliable construction ensures that it can withstand the rigors of daily use, while its energy-efficient components help to reduce power consumption, contributing to lowered operational costs.

Moreover, the DX7500 supports a wide range of operating systems, including Windows Vista and later versions, providing users with the flexibility to choose an OS that aligns with their software requirements. Its compatibility with various business applications ensures that users can seamlessly integrate it into their existing IT infrastructure.

In summary, the HP DX7500 stands out as a versatile desktop solution tailored for business environments. With its balance of performance, storage capability, and connectivity options, it serves as a dependable workhorse for a multitude of professional tasks, making it a smart choice for organizations seeking efficiency and reliability in their computing systems.
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