HP NET VECTRA N30 User Manual

HP NetPC, HP SmallPC & HP NetVectra

Troubleshooting Guide

Notice

The information contained in this document is subject to change without notice.

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Who this Manual is For

This manual is for anyone who wants to troubleshoot problems on their HP NetPC, SmallPC and NetVectra PC and find out where to get more information and support.

Important Ergonomic Information

It is strongly recommended that you read the ergonomic information before using your PC. To view this information you can connect to HP’s ergonomic web site at

Important Safety Information

http://www.hp.com/ergo.

WARNING

For your safety, never remove the PC's cover without first removing the power cord and any connection to a telecommunication network. Always replace the cover before switching the PC on again.

There is a danger of explosion if the battery is incorrectly installed. For your safety, never attempt to recharge, disassemble, or burn the old battery. Replace only with the same or equivalent type recommended by the manufacturer. The battery in this PC is a lithium battery that does not contain heavy metals. Nevertheless, in order to protect the environment, do not dispose of batteries in household waste. Please return used batteries to the shop from which you bought them, to the dealer from whom you purchased your PC, or to HP so they can either be recycled or disposed of in a sound way. Returned used batteries will be accepted free of charge.

If you have a modem:

Do not attempt to connect this product to the phone line during a lightning storm. Never install telephone jacks in wet locations unless the telephone line has been disconnected at the network interface. Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface. Use caution when installing or modifying telephone lines. Avoid using a telephone (other than a cordless type) during an lightning storm. There may be a risk from lightning. Do not use the telephone to report a gas leak in the vicinity of the leak. Never touch or remove the Communications board without first removing the connection to the telephone network.

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Contents

Problems with Your PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

If There Is No Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

If There Is Nothing Displayed on the Screen . . . . . . . . . . . . . . 9

If There Is a Memory Test Error . . . . . . . . . . . . . . . . . . . . . . . 10

If There Is a Keyboard or Mouse Test Error . . . . . . . . . . . . . 11

If There Is a Floppy Disk Drive Test Error . . . . . . . . . . . . . . 12

If There Is a Hard Disk or CD-ROM Drive Test Error . . . . . . 13

If There Is a CMOS Test Error . . . . . . . . . . . . . . . . . . . . . . . . 14

If There Is a Serial or Parallel Port Test Error . . . . . . . . . . . 15

Other Configuration Problems . . . . . . . . . . . . . . . . . . . . . . . . 16

Replacing the Internal Battery . . . . . . . . . . . . . . . . . . . . . . . . 17

If You Cannot Turn Off Your PC . . . . . . . . . . . . . . . . . . . . . . . 18

English

If You Have Forgotten Your Password . . . . . . . . . . . . . . . . . . .19

If the Wake On LAN Feature Does Not Work . . . . . . . . . . . . .20

If There Is an IRQ Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

If Your PC Has an Audio (Sound) Problem . . . . . . . . . . . . . . . 22

If Your PC Has a Software Problem . . . . . . . . . . . . . . . . . . . . . 23

Recovering Hard Disk Contents . . . . . . . . . . . . . . . . . . . . . . . . 24

HP Setup Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Further Troubleshooting for Hardware Problems . . . . . . . . .26

Hewlett Packard Support and Information Services . . . . . . .30

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Troubleshooting Your PC

1 Troubleshooting Your PC

Problems with Your PC

Problem Cause and Solution

If there is no power Refer to page 8

If there is nothing displayed on the screen Refer to page 9

If there is a memory test error Refer to page 10

If there is a keyboard or mouse test error Refer to page 11

If there is a floppy disk drive test error Refer to page 12

If there is a hard disk or CD-ROM drive test error Refer to page 13

If there is a CMOS test error Refer to page 14

If there is a serial or parallel port test error Refer to page 15

Other configuration problems Refer to page 16

You cannot turn off the PC The PC is frozen in power

saving mode

You have forgotten your password Refer to page 19

The Wake On LAN feature does not work Refer to page 20

There is an IRQ problem when you install an accessory board The IRQ used by the

accessory board is conflicting with the IRQ used by another device

The PC has an audio problem Refer to page 22

The PC has a software problem Refer to page 23

You want to recover the contents of your hard disk Refer to page 24

You want to verify your PC’s configuration Refer to page 25

You want to solve problems with your disk drives and accessory boards

You want to know how to get more information and support Refer to page 30

Refer to page 26

Refer to page 18

Refer to page 21

7 English

If There Is No Power

Problem Check that... How

PC does not start – the PC’s power-on indicator is not illuminated.

If the PC still does not start

WARNING: For your safety, never remove the PC’s cover without first removing the power cord from the power outlet, and any connection to a telecommunication network. Always replace the cover before switching the PC on again.

If the PC still does not start

WARNING: To avoid electric shock, do not open the power supply. There are no user serviceable parts inside.

If the problem persists, contact HP Support or your authorized dealer

The PC’s power cord is correctly connected.

The PC’s power outlet is working.

None of the internal devices are causing the problem.

It is not the power supply unit that is causing the problem.

Connect the power cord to a grounded power outlet and the PC.

Plug a light into the grounded power outlet and check it illuminates.

• Disconnect the PC’s power cord.

• Open the PC.

• Remove internal power connectors from

all internal devices.

• Reconnect the PC’s power cord.

• Reconnect the power connectors one by

one to the internal devices to see which device is defective.

• Contact HP Support or your authorized

dealer.

• Replace the power supply unit by a

known working power supply from another similar PC.

• If the PC starts, contact HP Support or

your authorized dealer; the power supply unit might need replacing.

1 Troubleshooting Your PC

If There Is No Power

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1 Troubleshooting Your PC

If There Is Nothing Displayed on the Screen

Problem Check that... How

PC’s power indicator light and hard disk activity light work but the screen remains blank.

If the monitor still does not work

The monitor is switched ON (LED is on).

The monitor’s power cord is correctly connected.

The monitor’s power outlet is working.

The monitor’s brightness and contrast settings are correct.

The video cable pins are not damaged.

The monitor itself is not faulty.

Refer to the monitor manual for an explanation of the LED signals (green, orange, or blinking).

Connect the power cord – ensure it is plugged into a grounded power outlet and into the monitor.

Plug a light into the grounded power outlet and check it illuminates.

Refer to the monitor manual if necessary.

• Switch off and unplug the monitor.

• Disconnect the video cable and straighten any bent pins.

• Reconnect the video cable.

• Switch on the monitor and see if it works.

• Replace the monitor by a known working monitor from

another similar PC.

• If the monitor starts, contact HP Support or your

authorized dealer. The monitor may need to be replaced.

9 English

If There Is a Memory Test Error

Problem Check that... How

Power-On-Self-Test displays a memory test error.

If the PC still does not boot

If the problem persists, contact HP Support or your authorized dealer

The PC’s memory modules are correctly installed.

The PC’s memory modules are working.

The system board is working.

• Disconnect the power cord.

• Open the PC.

• Check the memory modules are of the

• Close the PC, reconnect the power cord

• Refer to the Accessories Guide for more

• Disconnect the power cord.

• Open the PC.

• Replace the memory modules by known

• Close the PC, reconnect the power cord

• Refer to the Accessories Guide for more

• Disconnect the power cord.

• Open the PC.

• Replace the system board by a known

• Close the PC, reconnect the power cord

• If the PC works, contact HP Support or

1 Troubleshooting Your PC

If There Is a Memory Test Error

correct type and in the correct sockets.

and check that the PC boots (starts).

information.

good memory modules from a similar PC.

and check that the PC boots (starts).

information.

good board from a similar PC.

and check that the PC boots (starts).

your authorized dealer for further troubleshooting information.

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+ 22 hidden pages