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105
No-beep error messages
I/O device IRQ conflict ■Run “Load Setup Defaults” using the BIOS Setup Utility, then reboot
the notebook.
■Test or replace the CMOS battery, run the BIOS Setup Utility to
reconfigure system time, then reboot the system.
■Test or replace the system board.
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 system board

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 “Testing
the power system” on page 100.
■Make sure that every connector is connected tightly and correctly.
■Reconnect the SO-DIMM.
■Test or replace the LED board.
■Test or replace the system board.
No beep, power-on indicator turns on and LCD
is blank.
■Test the power source (battery pack and power adapter). See “Testing
the power system” on page 100.
■Reconnect the LCD connector
■Check the hard disk drive.
■Check the LCD inverter ID.
■Check the LCD cable.
■Test or replace the LCD inverter.
■Test or replace the LCD.
■Test or replace the system board.
No beep, power-on indicator turns on and LCD
is blank. But you can see POST on an external
CRT.
■Reconnect the LCD connectors.
■Check the LCD inverter ID.
■Check the LCD cable.
■Test or replace the LCD inverter.
■Test or replace the LCD.
■Test or replace the system board.
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 system board.
No beep during POST but system runs correctly. ■Test or replace the speaker.
■Test or replace the system board.

Error Messages FRU/Action Sequence