HP Vectra VL800 Manual de usuario

hp vectra vl800

desktop &

minitower

troubleshooting

guide

www.hp.com/go/vectrasupport

Francais

Notice

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2001 Hewlett-Packard Company

Feb. 2001

iii

Contents

Your PC does not start correctly,

or does not start at all. Refer to page 7.

For example, the monitor is blank, error messages during boot,

beep codes emitted.

Your PC starts normally, but you are

having problems using or configuring. Refer to page 19.

For example, hardware not detected, you have forgotten a password,

there is a software problem.

Troubleshooting your PC

using HP DiagTools. Refer to page 41.

You can diagnose hardware-related problems, test

individual hardware components and check hardware configuration.

Recovering hard disk drive contents with the

recovery CD-ROM. Refer to page 49.

You can restore the preloaded operating system,

drivers, utilities and software.

Other useful sources of information. Refer to page 51.

How to obtain the latest drivers, software utilities and BIOS updates.

Also details on how to download documentation

corresponding to your PC.

Contacting HP Support Services. Refer to page 53.

Details the type of information you should prepare before

contacting HP Support for assistance.

Troubleshooting your PC using HP Instant Support.

You can use this web-based problem resolution service to automate and

speeds up troubleshooting. Go to www.hp.com/go/vectrasupport,

then click HP Instant Support in the left-hand menu.

Introduction

This manual is for anyone who wants to:

•Troubleshoot problems on their PC

•Find out where to get more information and support.

For information about setting up and using your PC, refer to the User’s

Guide, available on HP’s web site at:

www.hp.com/go/vectrasupport.

Important Warnings

Removing and Replacing the Cover

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

telecommunications network. Always replace the cover before

switching the PC on again.

Safety Information

WARNING There is a danger of explosion if the battery is incorrectly installed. For

your safety, never attempt to recharge, disassemble, or burn an old

battery. Only replace the battery with the same or equivalent type, as

recommended by the manufacturer. The battery in this PC is a lithium

battery which does not contain any heavy metals. Nevertheless, in

order to protect the environment, do not dispose of batteries in

household waste. Please return used batteries either to the shop from

which you bought them, to the dealer from whom you purchased your

PC, or to HP so that they can either be recycled or disposed of in the

correct way. Returned 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 a 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.

Your PC Does Not Start Correctly

Symptom Type of Problem

Case 1

When the power button is pressed, the PC shows

no sign of activity at all:

•PC may not be correctly connected to the

power supply.

Refer to page 9.

•Monitor is blank.

•No hard disk drive or fan noise.

•Status LED does not light up.

Case 2

When the power button is pressed, the PC appears

to boot, but monitor remains blank:

•Monitor may be badly connected or not

switched on.

Refer to page 11.

•Hard disk drive and fan can be heard.

•Status LED is GREEN.

Case 3

When the power button is pressed, the PC does

not boot:

•The PC has detected a hardware

configuration error. A component may be

badly connected inside the PC.

Refer to page 13.

•Hard disk drive and/or fan can be heard.

•Monitor remains blank.

•Status LED is RED (Desktop) or

YELLOW (Minitower).

•Beep code is emitted.

Case 4

When the power button is pressed, the PC starts

to boot and there is activity on the monitor:

•Configuration error has been detected. Refer to page 15.

•Boot process fails with an error message.

•Status LED is RED (Desktop) or

YELLOW (Minitower).

Case 5

When the power button is pressed, the PC starts

to boot and there is initially some activity on the

monitor, but then:

•Screen becomes blank.

•Image is corrupt.

•Video card may be improperly installed or

incorrectly configured.

•Hard disk drive failure or not accessible.

Refer to page 17.

1 Your PC Does Not Start Correctly

Helpful Information

EMU (Error Message Utility) Description. Refer to page 15.

Beep Code Table Refer to page 14.

If You Have Forgotten Your BIOS Password Refer to page 27.

Troubleshooting BIOS Problems:

•Updating the BIOS. Refer to page 31.

•Restoring BIOS Default Settings. Refer to page 31.

•Clearing the CMOS. Refer to page 32.

•Recovering the BIOS (Crisis Mode). Refer to page 33.

System Board Switches. Refer to page 34.

Using the HP Setup Program. Refer to page 35.

Troubleshooting Hardware With HP e-DiagTools. Refer to page 41.

1 Your PC Does Not Start Correctly

Case 1 — If There Is No Activity At All

When the power button is pressed, the PC shows no sign of activity at

all. The monitor is blank, there is no sound from the hard disk drive or

fan, or the status LED does not light up.

•Monitor is blank.

•No hard disk drive or fan noise.

•Status LED does not light up.

NOTE Before removing the cover, always switch off the display and PC.

Disconnect the power cord and any accessory cables. When checks

have been completed, close the PC and reconnect the power cord and

accessory cables. Verify that the PC boots correctly.

Symptom... Check that... How...

PC does not start – the status

LED indicator is not illuminated.

The power cord is correctly connected. Connect the power cord to a grounded power outlet and the

PC.

The power outlet is working. Plug a light into the grounded power outlet and check it

comes on.

The voltage switch is correctly set (located

on the rear of the PC).

1Disconnect the power cord.

2Select the correct setting.

3Reconnect the power cord.

4Start the PC.

If the PC still does not start

Check that... How...

None of the internal devices are causing the

problem.

1Remove internal power connectors from all internal

devices (except for the system board).

2Reconnect the power cord.

3Reconnect the power connectors one by one to the

internal devices to see if a device is defective.

4If a device is found to be defective, contact HP Support or

your authorized dealer.

Continued on the next page ➩

1 Your PC Does Not Start Correctly

Case 1 — If There Is No Activity At All

If the PC still does not start

Check that... How...

There is not a problem with the power

supply unit.

1Replace the power supply unit by a known working power

supply from the same model of PC.

2If the PC starts, contact HP Support or your authorized

dealer. The power supply unit might need replacing.

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

Symptom... Check that... How...

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