Solving Memory Problems

If you encounter memory problems, some common causes and solutions are listed in the following table.

CAUTION: Power may still be supplied to the DIMMs when the computer is turned off (depending on the Management Engine (ME) settings). To avoid damage to the DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a DIMM module.

For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory. Otherwise, the computer will not boot the operating system.

NOTE: The memory count will be affected by configurations with the Management Engine (ME) enabled. The ME uses 8MB of system memory in single channel mode or 16MB of memory in dual- channel mode to download, decompress, and execute the ME firmware for Out-of-Band (OOB), third- party data storage, and other management functions.

Table 2-13Solving Memory Problems

System will not boot or does not function properly after installing additional memory modules.

Cause

Solution

 

 

A memory module is not installed in the XMM1 (or DIMM1)

Ensure that a memory module is installed in the black XMM1

socket.

(or DIMM1) socket on the system board. This socket must be

 

populated with a memory module.

 

 

Memory module is not the correct type or speed grade for the

Replace module with the correct industry-standard device for

system or the new memory module is not seated properly.

the computer. On some models, ECC and non-ECC memory

 

modules cannot be mixed.

 

 

Out of memory error.

 

 

 

Cause

Solution

 

 

Memory configuration may not be set up correctly.

Use the Device Manager to check memory configuration.

 

 

You have run out of memory to run the application.

Check the application documentation to determine the memory

 

requirements.

 

 

Memory count during POST is wrong.

 

 

 

Cause

Solution

 

 

The memory modules may not be installed correctly.

Check that the memory modules have been installed correctly

 

and that proper modules are used.

 

 

Integrated graphics may use system memory.

No action required.

 

 

38 Chapter 2 Troubleshooting Without Diagnostics

ENWW

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HP dc7900 manual 13Solving Memory Problems, Out of memory error Cause Solution

dc7900 specifications

The HP dc7900 is a well-regarded desktop solution that serves as a testament to HP's commitment to performance, reliability, and user accessibility. Introduced as part of HP’s Compaq line and designed primarily for business professionals, the dc7900 combines powerful processing capabilities with a compact form factor that suits various office environments.

One of the standout features of the HP dc7900 is its robust configuration options. It typically comes equipped with Intel's Core 2 Duo or Quad processors, giving users the ability to handle demanding applications seamlessly. The inclusion of Intel's technologies, such as Intel vPro, enhances remote management and IT control, making it an ideal choice for businesses looking to streamline their operations.

The dc7900 is designed with flexibility in mind. It offers multiple form factors, including mini-tower, small form factor, and ultra-slim desktop configurations. This variety enables organizations to choose a model that best fits their workspace requirements, maximizing both efficiency and aesthetics. The small footprint models are particularly beneficial in space-constrained environments, while the mini-tower version provides expandability for future upgrades.

In terms of graphics capabilities, the HP dc7900 typically features integrated Intel graphics, with options to install discrete graphics cards for users who require enhanced visual performance. This makes the dc7900 suitable for tasks ranging from standard office applications to more graphics-intensive responsibilities.

Connectivity is another key characteristic of the HP dc7900. It is equipped with a variety of ports, including USB 2.0 and audio jacks, allowing users to connect peripherals easily. Additionally, the dc7900 supports legacy connections, making it easier for businesses with older equipment to integrate new systems without hassle.

Durability and reliability are hallmarks of the HP dc7900. Built with high-quality materials and subjected to rigorous testing, this desktop is designed to withstand the demands of a bustling office environment. Furthermore, HP's comprehensive warranty and support options assure businesses of the reliability of their investment.

The HP dc7900 is not just a powerful desktop; it’s a versatile and dependable solution for modern businesses. With its combination of performance, expandability, and solid build quality, the dc7900 remains a relevant choice for those looking to enhance their productivity and efficiency in the workplace.