HP Vectra VLi 8SF Manual

English 1
Troubleshooting and Upgrade Guide
www.hp.com/go/vectrasupport
Corporate PCs

Notice
The information contained in this document is subject to change
without notice.
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1999 Hewlett-Packard Company

iii
Troubleshooting and Upgrade Guide
This manual is for anyone who wants to:
•Troubleshoot problems on the PC
•Add accessories to the PC
•Configure the 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 that came with your PC. The User’s Guide is also available on
HP’s web site at: http://www.hp.com/go/vectrasupport.
Important Safety Information
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.
Care of Equipment
CAUTION To avoid damage when operating the CD-ROM drive, do not touch the lens.

iv
Which Vectra PC Do You Have?
Before connecting to HP’s web site or phoning your support
organization, look at the identification label on the side of your PC. It
will tell you the series and model of your Vectra PC.

Contents
English v
Care of Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Which Vectra PC Do You Have? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
1 Troubleshooting Your PC
Troubleshooting With HP Hardware Diagnostics . . . . . . . . . . . . . . . 10
Getting Online Support for Troubleshooting . . . . . . . . . . . . . . . . . . . 11
Documentation For Your PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Troubleshooting Orientation Table . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
If There Is No Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
If There is a Beep Code During Boot . . . . . . . . . . . . . . . . . . . . . . . . . 14
If Your Monitor Is Not Working Properly . . . . . . . . . . . . . . . . . . . . . . 15
If There Is a Memory Test Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
If There Is a Keyboard or Mouse Test Error . . . . . . . . . . . . . . . . . . . 17
If There Is a Floppy Disk Drive Test Error . . . . . . . . . . . . . . . . . . . . . 18
If There Is a Hard Disk or CD-ROM Drive Test Error . . . . . . . . . . . . 19
If There Is a CMOS Test Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
If There Is a Serial/Parallel Port Connection Test Error . . . . . . . . . 21
Other Configuration Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

vi English
If You Cannot Turn Off Your PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
If You Have Forgotten Your Password. . . . . . . . . . . . . . . . . . . . . . . . 24
If There is a LAN Problem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
If There Is an IRQ Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
If Your PC Has an Audio (Sound) Problem. . . . . . . . . . . . . . . . . . . . 27
If Your PC Has a Software Problem . . . . . . . . . . . . . . . . . . . . . . . . . . 28
If you Have Problems Using the Euro Symbol . . . . . . . . . . . . . . . . . 29
For Windows 95 and Windows NT Users . . . . . . . . . . . . . . . . . . . . . . . . . 29
Configuring Your Keyboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Recovering Hard Disk Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Recovering Preloaded Software from a CD-ROM . . . . . . . . . . . . . . . . . . 30
Reinstallation of Windows NT Service Pack . . . . . . . . . . . . . . . . . . . . . . 30
Changing the Hard Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
BIOS Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Updating Your PC’s BIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Recovering from a BIOS Update Failure . . . . . . . . . . . . . . . . . . . . . . . . . 31
HP Setup Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Device Boot Order. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
More Troubleshooting for Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
If the Floppy Drive Does Not Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
If your Hard Disk Does Not Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
If the CD-ROM Drive Has a Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

English vii
Hewlett-Packard Support and Information Services . . . . . . . . . . . . 40
Collecting Information on Your PC Before Contacting Support . . . . . . . 40
2 How to Install or Replace Accessories In Your PC
Before Starting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Removing and Replacing the Cover & Front Panel. . . . . . . . . . . . . . 43
The Label Inside Your PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Upgrading the Main Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Upgrading Mass Storage Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Drive Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Upgrading the Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Upgrading Removable Media. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Installing Accessory Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Accessory Board Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Installing an Accessory Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Configuring Accessory Boards with Plug and Play . . . . . . . . . . . . . . . . . 56
Configuring non-Plug and Play ISA Accessory Boards . . . . . . . . . . . . . . 57
Changing the Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Installing a Security Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

viii English
3 Security and Manageability Features
Setting Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Tips for Using Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Setting the Administrator Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Setting the User Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Hardware Monitoring with HP TopTools . . . . . . . . . . . . . . . . . . . . . 65
Master Pass Key System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
4 Technical Information
System Board Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
IRQs, DMAs, and I/O Addresses Used by Your PC. . . . . . . . . . . . . . 70
Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Total Power Consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Physical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Acoustic Noise Emission. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Troubleshooting Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

1
Troubleshooting Your PC
This chapter can help you solve problems you may have when using your
PC. Do not hesitate to use the HP DiagTools Hardware Diagnostics
utility (described on page 10). DiagTools can help you to quickly diagnose
hardware problems for a speedy recovery.

1 Troubleshooting Your PC
Troubleshooting With HP Hardware Diagnostics
10
Troubleshooting With HP Hardware Diagnostics
NOTE HP strongly recommends you use the Hardware Diagnostics utility. It
provides the most effective means for troubleshooting the vast majority
of hardware problems.
DiagTools, the Hardware Diagnostics utility, helps you diagnose
hardware-related problems on HP PCs and PC Workstations.
It is a series of tools designed to help you:
•Check the configuration of your system and verify that it is
functioning correctly.
•Diagnose hardware-related problems.
•Provide precise information to HP-dedicated Support Agents so that
they can solve any problems quickly and effectively.
For more information about this utility, refer to the Hardware
Diagnostics User's Guide, available on the HP web site in PDF (Adobe
Acrobat) format.
Where Can I Get
DiagTools?
DiagTools is on the Diagnostics & Recovery CD-ROM that came with
your PC. You can also download the latest version of this utility from
HP’s Web Site at www.hp.com/go/vectrasupport.
Starting DiagTools To start DiagTools:
1Insert the PC’s Diagnostics &Recovery CD-ROM into the CD-ROM
drive. (The Diagnostics & Recovery CD-ROM is delivered with
your PC.)
2Restart the PC.
3The PC will start (boot) from the CD-ROM and display a menu.
Select the option to run DiagTools.
4Follow the instructions on-screen to carry out the diagnostic tests.
This utility will automatically detect the complete hardware
configuration of your system before any tests can be performed.

11
1 Troubleshooting Your PC
Getting Online Support for Troubleshooting
Getting Online Support for Troubleshooting
HP’s support web site provides extensive support material that can
help you troubleshoot problems on your PC:
•Documentation for your PC (described below)
•Technical Notes
•BIOS updates (including the upgrade utility and instructions)
•The latest drivers and software utilities
•HP DiagTools Hardware Diagnostics (also provided preloaded and
on the Recovery CD-ROM), described on page 10.
For HP’s support web site, connect to:
www.hp.com/go/vectrasupport.
Documentation For Your PC
You can download documentation for your PC free of charge from HP’s
support web site. The documents provided are in Adobe Acrobat
(PDF) format.
The available documents include:
•User’s Guide—describes how to set up your PC for the first time and
contains quick troubleshooting information. It also contains
information on how to replace hardware components.
•Troubleshooting and Upgrade Guide—describes how to
troubleshoot your PC and install accessories. It also contains
information on the technical and security features of your PC.
•Service Handbook Chapters—information on upgrade and
replacement parts, including HP part numbers.
•Technical Reference Manual—technical information on system
components, such as system board, chipset and BIOS.

1 Troubleshooting Your PC
Troubleshooting Orientation Table
12
Troubleshooting Orientation Table
Symptom Problem Cause Solution
PC does not start. No power. Refer to page 13.
PC’s power indicator light works but
monitor remains blank.
No display. Refer to page 15.
The display’s resolution is wrong. Wrong resolution settings. Refer to page 15.
An error message/code appears when
the PC is switched on.
Power-On-Self-Test has
detected an error.
Beep code error. Refer to page 14.
Memory error.
Keyboard or mouse error. Refer to page 17.
Floppy drive error. Refer to page 18.
Hard disk or CD-ROM error. Refer to page 19.
CMOS error. Refer to page 20.
Serial or parallel port error. Refer to page 21.
Other configuration problems. Refer to page 22.
You cannot turn off the PC. The PC is frozen in power
saving mode.
Refer to page 23.
Problem Solution
You have forgotten your password. Refer to page 24.
The LAN feature does not work. Refer to page 25.
There is an IRQ conflict when you install a new accessory board. Refer to page 26.
The PC has an audio problem. Refer to page 27.
The PC has a software problem. Refer to page 28.
Recovering hard disk contents. Refer to page 30.
Further problems with floppy/hard disk and CD-ROM drives. Refer to page 35.

13
1 Troubleshooting Your PC
If There Is No Power
If There Is No Power
Problem Check that... How
PC does not start – the
PC’s power-on indicator is
not illuminated.
The PC’s power cord is
correctly connected.
Connect the power cord to a grounded power
outlet and the PC.
The PC’s power outlet is
working.
Plug a light into the grounded power outlet and
check it illuminates.
The PC voltage switch is
correctly set.
1Disconnect the power cord.
2Select the correct setting.
3Reconnect the power cord.
4Start the PC.
If the PC still does not start
WARNING: for your
safety, when the PC is
open and switched on, do
not touch any of the
internal components with
a screwdriver or other
metal instrument.
None of the internal
devices are causing the
problem.
1Disconnect the PC’s power cord.
2Remove the PC’s cover.
3Remove internal power connectors from all
internal devices.
4Reconnect the PC’s power cord.
5Reconnect the power connectors one by one
to the internal devices to see which device is
defective.
6Contact HP Support or your authorized
dealer.
If the PC still does not start
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.

1 Troubleshooting Your PC
If There is a Beep Code During Boot
14
If There is a Beep Code During Boot
If an error occurs during the Power-On Self-Test (POST), which
prevents the PC from starting, the system issues a beep code before
attempting to display the error in the upper left corner of the screen.
Beep codes are useful for identifying the error when the system is
unable to display the error message.
Beep Pattern Beep
Code
Numeric
Code Description Recommended Action
— - - - - - - - 1-2-2-3 16h BIOS ROM check-sum failure Inform HP support/HP reseller
that system board is defective.
— - - - — — 1-3-1-1 20h DRAM refresh test failure Reset the memory. If the error
still occurs, replace the module.
— - - - — - - - 1-3-1-3 22h 8042 Keyboard controller test
failure
Inform HP support/HP reseller
that system board is defective.
— - - - - - - — 1-3-3-1 RAM module missing or not
installed correctly1
1. Non-HP memory modules are not supported. Only HP memory modules should be used.
Replace or reset the memory.
— - - - - - - - — 1-3-4-1 2Ch RAM failure on an address line1Replace or reset the memory. If
the error still occurs, replace an
existing module.
— - - - - - - - - - - 1-3-4-3 2Eh RAM failure on data bits xxxx of
low byte of memory bus1
Replace or reset the memory. If
the error still occurs, replace an
existing module.
— - - - - — — 1-4-1-1 30h RAM failure on data bits xxxx of
high byte of memory bus1
Replace or reset the memory. If
the error still occurs, replace an
existing module.
- - — - - - - - 2-1-2-3 46h ROM copyright notice check failure Inform HP support/HP reseller
that system board is defective.
- - - - - - - — 2-2-3-1 58h Unexpected interrupts test failure Inform HP support/HP reseller
that system board is defective.
— - - 1-2 98h Video configuration failure or option
ROMs check-sum failure
This can be caused by problems
with the ROM on the
integrated video, or on an
accessory video board or the
ROM on a SCSI accessory
board.

15
1 Troubleshooting Your PC
If Your Monitor Is Not Working Properly
If Your Monitor Is Not Working Properly
Problem Check that... How
PC’s power indicator light
and hard disk activity light
work but the screen remains
blank.
The display is switched ON
(LED is on).
Refer to the monitor manual for an explanation of the LEDs.
The monitor’s power cord is
correctly connected.
Ensure the power cord is plugged into a grounded power outlet and into the
monitor.
The monitor’s power outlet is
working.
Plug a light into the grounded power outlet and check it illuminates.
If the monitor still does not work
The monitor’s brightness and
contrast settings are correct.
Refer to the monitor manual if necessary.
The video cable pins are not
damaged.
1Switch off and unplug the monitor.
2Disconnect the video cable and straighten any bent pins.
3Reconnect the video cable and plug the monitor in.
4Switch on the monitor and see if it works.
You may need to update
your PC’s Basic Input Output
System (BIOS).
Create a bootable floppy to update your PC’s BIOS. Refer to page 31.
The PC’s integrated video is
working.
1Disconnect the power cord.
2Remove the PC’s cover.
3Install a known working system board from the same model of PC.
4Reconnect the power cord.
5If the monitor works, inform HP Support or your authorized dealer that the
system board is defective.
The monitor settings in your
PC are compatible with your
monitor
•Windows NT 4.0: Enter VGA mode when prompted during start-up, then
reset the resolution.
•Windows 95/98: Restart the PC. The Hewlett-Packard screen is displayed.
When you hear a beep, press F8 and then start the PC in safe mode.
Double-click on the Display icon in your PC’s Control
Panel, then click on the Settings button. Use the sliding control to reset
the resolution.
The monitor itself is not faulty. 1Replace the monitor by a known working monitor from the same model of
PC.
2If the monitor starts, contact HP Support or your authorized dealer. The
monitor may need to be replaced.

1 Troubleshooting Your PC
If There Is a Memory Test Error
16
If There Is a Memory Test Error
Problem Check that... How
Power-On-Self-Test (POST)
displays a memory test
error.
The PC’s memory modules
are correctly installed.
1Disconnect the power cord.
2Remove the PC’s cover.
3Check the memory modules are correctly
installed, of the correct type and in the correct
sockets (refer to page 45).
4Close the PC, reconnect the power cord and
check that the PC boots (starts).
The PC’s memory modules
are working.
1Disconnect the power cord.
2Remove the PC’s cover.
3Replace the memory modules by known working
memory modules from the same model of PC
(refer to page 45).
4Close the PC, reconnect the power cord and
check that the PC boots (starts).
If the PC boots but you still have a problem...
Run DiagTools Refer to page 10.
You may need to update
your PC’s Basic Input
Output System (BIOS).
Create a bootable floppy to update your PC’s BIOS.
Refer to page 31.
The system board is
working.
1Disconnect the power cord.
2Remove the PC’s cover.
3Replace the system board by a known working
board from the same model of PC.
4Close the PC, reconnect the power cord and
check that the PC boots (starts).
5If the PC works, contact HP Support or your
authorized dealer for further troubleshooting
information.
If the problem persists, contact HP Support or your authorized dealer

17
1 Troubleshooting Your PC
If There Is a Keyboard or Mouse Test Error
If There Is a Keyboard or Mouse Test Error
Problem Check that... How
POST displays a
keyboard or mouse test
error.
The keyboard and mouse cables are
correctly connected.
1Switch off the PC.
2Plug the cables into the correct connectors on the back of the
PC.
The keyboard is clean and no keys are
stuck down.
The mouse is clean.
•Check all keys are at the same height, and none are stuck
(keyboard).
•Clean the mouse ball as shown below.
If the PC boots but you still have a problem...
Run DiagTools Refer to page 10.
You may need to
update your PC’s Basic
Input Output System
(BIOS).
Create a bootable floppy to update your PC’s BIOS. Refer to
page 31.
The keyboard/mouse are working 1Switch off the PC.
2Replace the keyboard/mouse by known working units.
3Switch on the PC, and check it works.
The keyboard/mouse are working 1Switch off the PC.
2Replace the keyboard/mouse by known working units.
3Switch on the PC, and check it works.
PC’s Basic Input Output
System (BIOS) may
need updating.
Your PC has the latest BIOS version. Refer to page 31.

1 Troubleshooting Your PC
If There Is a Floppy Disk Drive Test Error
18
If There Is a Floppy Disk Drive Test Error
Problem Check that... How
Power-On-Self-Test
displays floppy drive
test error.
The drive is correctly
configured in the PC’s
Setup program. Refer
to page 35.
1Switch the PC OFF then ON.
2When the Vectra logo appears, press the F2 key.
3Check the floppy disk drive is enabled.
The drive cables are
correctly connected.
1Disconnect the power cord.
2Remove the PC’s cover.
3Check the floppy drive cables are correctly connected (refer to page 46).
4Close the PC then switch it on and check it works.
The drive cable is
working.
1Disconnect the power cord.
2Remove the PC’s cover.
3Replace the floppy drive cable by a known working cable from the same
model of PC.
4Close the PC then switch it on and check it works.
The floppy is working. Insert a known working floppy disk and see if it works.
If the drive still does not work...
Run DiagTools. Refer to page 10.
You may need to
update your PC’s
Basic Input Output
System (BIOS).
Create a bootable floppy to update your PC’s BIOS. Refer to page 31.
The drive is working. 1Disconnect the power cord.
2Remove the PC’s cover.
3Replace the floppy drive by a known working drive from the same model
of PC (refer to your PC User’s Guide).
4Close the PC then switch it on and check it works.
5If the drive works, replace the defective drive.
The system board and
riser card are working.
1Disconnect the power cord.
2Remove the PC’s cover.
3Replace the system board and\or riser card by known working units from
the same model of PC.
4Close the PC, reconnect the power cord and check that the PC and drive
work.
If the problem persists, contact HP Support or your authorized dealer

19
1 Troubleshooting Your PC
If There Is a Hard Disk or CD-ROM Drive Test Error
If There Is a Hard Disk or CD-ROM Drive Test Error
Problem Check that... How
Power-On-Self-Test
displays hard disk or
CD-ROM drive
test error
The drive is correctly
configured in the
PC’s Setup program.
Refer to page 35.
1Switch the PC OFF then ON.
2When the Vectra logo appears, press the F2 key.
3Check the drive is enabled and the correct type is selected.
The drive cables are
correctly connected.
1Disconnect the power cord.
2Remove the PC’s cover.
3Check the drive cables are correctly connected (refer to chapter 2).
4Close the PC then switch it on and check it works.
The drive cable is
working.
1Disconnect the power cord.
2Remove the PC’s cover.
3Replace the drive cable by a known working cable from the same
model of PC (refer to chapter 2).
4Close the PC then switch it on and check it works.
If the drive still does not work...
Run DiagTools from
the floppy drive.
Refer to page 10.
You may need to
update your PC’s
Basic Input Output
System (BIOS).
Create a bootable floppy to update your PC’s BIOS. Refer to page 31.
The drive is working. 1Disconnect the power cord.
2Remove the PC’s cover.
3Carefully replace the drive by a known working drive from the
same model of PC (refer to chapter 2).
4Close the PC then switch it on and check it works.
The system board
and riser card are
working.
1Disconnect the power cord.
2Remove the PC’s cover.
3Replace the system board and\or riser card by known working
units from the same model of PC.
4Close the PC, reconnect the power cord and check that the PC and
drive work.
If the problem persists, contact HP Support or your authorized dealer

1 Troubleshooting Your PC
If There Is a CMOS Test Error
20
If There Is a CMOS Test Error
Problem Check that... How
POST displays CMOS test
error. CMOS is a chip that
keeps a record of installed
components when the PC
is turned off.
Power is correctly
connected to the riser
card.
1Disconnect the power cord.
2Remove the PC’s cover.
3Check the power connector is correctly attached
to the riser card.
4Close the PC, reconnect the power cord and
check that the PC boots (starts).
5You may need to restore the default
configuration settings. Refer to page 22.
The internal battery is
working.
1Set the PC to the correct time (refer to the
operating system manual).
2Switch off and unplug the PC for an hour.
3Restart the PC and check the time is correct.
4If the time is incorrect, replace the PC’s battery
by a new one (refer to page 58).
You may need to update
your PC’s Basic Input
Output System (BIOS).
Create a bootable floppy to update your PC’s BIOS.
Refer to page 31.
The system board is
working.
1Disconnect the power cord.
2Remove the PC’s cover.
3Replace the system board by a known working
board from the same model of PC.
4Close the PC, reconnect the power cord and
check that the PC works.
If the problem persists, contact HP Support or your authorized dealer