Table 2-6Solving Display Problems (continued)

Blurry video or requested resolution cannot be set.

Cause

Solution

 

 

If the graphics controller was upgraded, the correct graphics

Install the video drivers included in the upgrade kit.

drivers may not be loaded.

 

 

 

 

Monitor is not capable of displaying requested resolution.

Change requested resolution.

 

 

Graphics card is bad.

Replace the graphics card.

 

 

 

The picture is broken up, rolls, jitters, or flashes.

 

 

 

 

Cause

Solution

 

 

The monitor connections may be incomplete or the monitor

1. Be sure the monitor cable is securely connected to the

may be incorrectly adjusted.

 

computer.

 

2.

In a two-monitor system or if another monitor is in close

 

 

proximity, be sure the monitors are not interfering with

 

 

each other’s electromagnetic field by moving them apart.

 

3.

Fluorescent lights or fans may be too close to the monitor.

 

 

Monitor needs to be degaussed.

Degauss the monitor. Refer to the documentation that came

 

with the monitor for instructions.

 

 

 

Image is not centered.

 

 

 

 

Cause

Solution

 

 

Position may need adjustment.

Press the monitor's Menu button to access the OSD menu.

 

Select ImageControl/ Horizontal Position or Vertical

Position to adjust the horizontal or vertical position of the image.

“No Connection, Check Signal Cable” displays on screen.

Cause

Solution

 

 

Monitor video cable is disconnected.

Connect the video cable between the monitor and computer.

CAUTION: Ensure that the computer power is off while connecting the video cable.

“Out of Range” displays on screen.

Cause

Solution

 

 

Video resolution and refresh rate are set higher than what the monitor supports.

Restart the computer and enter Safe Mode. Change the settings to a supported setting then restart the computer so that the new settings take effect.

26 Chapter 2 Troubleshooting Without Diagnostics

ENWW

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HP dc7900 manual Image is not centered Cause Solution, Select ImageControl/ Horizontal Position or Vertical

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.