POST Error Messages

Diagnostic Front Panel LEDs and Audible Codes (Continued)

Activity

Beeps

Possible Cause

Recommended Action

 

 

 

 

Red Power LED

7

System board

Replace the system board.

flashes seven times,

 

failure (ROM

 

 

once every second,

 

detected failure

 

 

followed by a two

 

prior to video).

 

 

second pause.

 

 

 

 

 

 

 

 

Red Power LED

8

Invalid ROM

1. Reflash the ROM using a ROMPaq

flashes eight times,

 

based on bad

 

diskette. See the “ROM Flash”

once every second,

 

checksum.

 

section of the Desktop

followed by a two

 

 

 

Management Guide on the

second pause.

 

 

 

Documentation CD.

 

 

 

2.

Replace the system board.

 

 

 

 

 

Red Power LED

9

System powers on

1.

Check that the voltage selector,

flashes nine times,

 

but is unable to

 

located on the rear of the power

once every second,

 

boot.

 

supply (some models), is set to the

followed by a two

 

 

 

appropriate voltage. Proper voltage

second pause.

 

 

 

setting depends on your region.

 

 

 

2.

Replace the system board.

 

 

 

3.

Replace the processor.

 

 

 

 

 

Red Power LED

10

Bad option card.

1.

Check each graphics card by

flashes ten times,

 

 

 

removing the card (one at a time if

once every second,

 

 

 

multiple cards), then power on the

followed by a two

 

 

 

system to see if fault goes away.

second pause.

 

 

2.

Once a bad card is identified,

 

 

 

 

 

 

 

remove and replace the bad option

 

 

 

 

card.

 

 

 

3.

Replace the system board.

 

 

 

 

 

Troubleshooting Guide

www.hp.com

A–17

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Image 79
HP DC5100 manual Management Guide on

DC5100 specifications

The HP DC5100 is a desktop computer that was launched by Hewlett-Packard in the mid-2000s, primarily targeting the business sector and home office users. Its design emphasizes robustness, reliability, and ease of use, which has made it a popular choice among small to medium-sized businesses.

One of the main features of the HP DC5100 is its compact form factor, designed for efficient use of space in an office environment. The small desktop chassis allows users to maximize their workspace while still providing ample power for essential applications. The machine is equipped with various Intel processor options, including the Pentium 4 and the Celeron, which cater to different performance needs. This flexibility in processor choice allows businesses to select a configuration that best fits their specific workload requirements.

In terms of memory, the DC5100 supports a maximum of 4 GB of DDR2 RAM, ensuring that it can handle multitasking efficiently. This is particularly beneficial for tasks such as running multiple applications simultaneously, which is a common requirement in business settings. The storage options are diverse, with SATA hard drives available in various capacities, providing users with the ability to choose the right amount of space for their data and applications.

Connectivity options are also a highlight of the HP DC5100. It comes equipped with multiple USB ports, facilitating easy connection of peripherals such as printers, external storage devices, and other accessories. The integrated Ethernet port enables quick and reliable network connectivity, making it simple to connect to local networks and access the internet.

Another noteworthy aspect of the DC5100 is its energy efficiency. Designed for business use, it incorporates power-saving features that help reduce overall energy consumption, contributing to lower operating costs over time. This is particularly important for companies looking to manage their budgets while being mindful of environmental impact.

The HP DC5100 also features various security technologies, including password protection and BIOS security options, which help protect sensitive data. This is critical for businesses that prioritize data integrity and confidentiality.

In conclusion, the HP DC5100 is a well-rounded desktop that boasts a balance of performance, efficiency, and reliability. Its compact design, versatile configurations, and strong connectivity options make it a solid choice for both business and home office environments. With features designed to enhance productivity while ensuring security and energy savings, the HP DC5100 remains a viable option for users seeking dependable computing power.