Installing Additional Memory, DDR2-SDRAM DIMMs

Installing Additional Memory

The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2- SDRAM) dual inline memory modules (DIMMs).

DIMMs

The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM. The sockets are labeled DIMM1, DIMM2, DIMM3, and DIMM4. To achieve the maximum memory support, you can populate the system board with up to 4GB (4 x 1GB) of memory.

DDR2-SDRAM DIMMs

For proper system operation, the DDR2-SDRAM DIMMs must be:

●industry-standard 240-pin

●unbuffered PC2-5300 667 MHz-compliant and unbuffered PC2-6400 800 MHz-compliant

●1.8 volt DDR2-SDRAM DIMMs

The DDR2-SDRAM DIMMs must also:

●support CAS latency 4 (CL = 4) for PC2-5300 667 MHz-compliant and PC2-6400 800 MHz

●contain the mandatory JEDEC SPD information

In addition, the computer supports:

●256Mbit, 512Mbit, and 1Gbit non-ECC memory technologies

●single-sided and double-sided DIMMs

●DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported

NOTE: The system will not start if you install unsupported DIMMs.

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.

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.

ENWW	Installing Additional Memory 9

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.