Solving Hardware Installation Problems

You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or expansion card. If you install a plug and play device, Windows automatically recognizes the device and configures the computer. If you install a non–plug and play device, you must reconfigure the computer after completing installation of the new hardware. In Windows, use the Add Hardware Wizard and follow the instructions that appear on the screen.

WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.

Table 2-11Solving Hardware Installation Problems

A new device is not recognized as part of the system.

Cause

Solution

 

 

Device is not seated or connected properly.

Ensure that the device is properly and securely connected and

 

that pins in the connector are not bent down.

 

 

Cable(s) of new external device are loose or power cables are

Ensure that all cables are properly and securely connected and

unplugged.

that pins in the cable or connector are not bent down.

 

 

Power switch of new external device is not turned on.

Turn off the computer, turn on the external device, then turn on

 

the computer to integrate the device with the computer system.

 

 

When the system advised you of changes to the configuration,

Reboot the computer and follow the instructions for accepting

you did not accept them.

the changes.

 

 

A plug and play board may not automatically configure when

Use Windows Device Manager to deselect the automatic

added if the default configuration conflicts with other devices.

settings for the board and choose a basic configuration that

 

does not cause a resource conflict. You can also use Computer

 

Setup to reconfigure or disable devices to resolve the resource

 

conflict.

 

 

USB ports on the computer are disabled in Computer Setup.

Enter Computer Setup (F10) and enable the USB ports.

 

 

Computer will not start.

 

 

 

Cause

Solution

 

 

Wrong memory modules were used in the upgrade or memory modules were installed in the wrong location.

1.Review the documentation that came with the system to determine if you are using the correct memory modules and to verify the proper installation.

NOTE: DIMM 1 must always be installed.

2.Observe the beeps and LED lights on the front of the computer. Beeps and flashing LEDs are codes for specific problems.

3.If you still cannot resolve the issue, contact Customer Support.

ENWW

Solving Hardware Installation Problems 33

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HP dc7900 manual 11Solving Hardware Installation Problems, Computer will not start 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.

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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.