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Chapter 4 71
No Beep Error Messages
Invalid System Configuration Data Test or replace the BIOS ROM.
Test or replace the mainboard.
I/O device IRQ conflict
Run “Load Setup Defaults” using the BIOS Setup Utility,
then reboot the system.
Test or replace the RTC battery, run the BIOS Setup
Utility to reconfigure system time, then reboot the
system.
Test or replace the mainboard.
Operating system not found
Run the BIOS Setup Utility and see if fixed disk and drive
A: are properly identified.
Test or replace the diskette drive.
Test or replace the hard disk drive.
Test or replace the mainboard.
No Beep Error Messages FRU/Action in Sequence
No beep, power-on indicator turns off and
LCD is blank.
Test the power source (battery pack and power adapter).
See “Power System Check” on page 67.
Make sure that every connector is connected tightly and
correctly.
Reconnect the SO-DIMM.
Test or replace the LED board.
Test or replace the mainboard.
No beep, power-on indicator turns on and
LCD is blank.
Test the power source (battery pack and power adapter).
See “Power System Check” on page 67.
Reconnect the LCD connector.
Check the hard disk drive.
Check the LCD cable.
Test or replace the LCD.
Test or replace the mainboard.
No beep, power-on indicator turns on and
LCD is blank. But you can see POST on an
external CRT.
Reconnect the LCD connector.
Check the LCD cable.
Test or replace the LCD.
Test or replace the mainboard.
No beep, power-on indicator turns on and a
blinking cursor shown on LCD during
POST.
Make sure that every connector is connected tightly and
correctly.
Test or replace the mainboard.
No beep during POST but system runs
correctly.
Test or replace the speaker.
Test or replace the mainboard.
Error Messages FRU/Action in Sequence