HP 500 manual Troubleshooting Suggestions, Startup

Symptom

Call Center:

Repair Center:

Repair Center:

Suggestions

Likely Causes

Comments

Does not boot on

Check the power source.

AC adapter.

Check the AC adapter.

AC or battery.

Press the system-off switch

SDRAM module.

Remove any SDRAM

to reset the computer.

Motherboard.

expansion module and try

Unplug the AC adapter and

Display assembly.

again.

remove all batteries, then

Hard drive.

Replace the system SDRAM

reconnect power.

module.

Remove any SDRAM

If the power mode light does

expansion module and try

not turn on, reprogram the

again.

BIOS; replace the

motherboard.

If the power mode light turns

on but the display does not,

try an external monitor. If the

monitor shows a successful

boot, replace the display

assembly. If the monitor

shows activity but the BIOS

does not complete, replace

the display assembly. If the

monitor is blank, replace the

motherboard.

If the power mode light and

display turn on and the BIOS

completes, but the OS will

not start from the hard disk or

from a floppy drive, replace

the motherboard. If the OS

starts only from a floppy

drive, reinstall the factory

software onto the hard drive;

replace the hard drive.

Beeps once, spins

SDRAM module.

Make sure at least one

hard disk, repeats,

SDRAM module is installed.

but does not boot.

Does not boot on

Check the battery level using

Battery or contacts.

main battery, but

the battery LEDs.

Motherboard.

boots on AC.

Check battery contacts. If

available, try another battery.

3-6

Troubleshooting and Diagnostics

HP Omnibook 500