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74 Chapter 4
No beep Error Messages List
No beep Error Messages FRU/Action in Sequence
No beep, power-on indicator turns off and LCD is
blank.
Power source (battery pack and power adapter).
See “Power System Check” on page 69.
Ensure every connector is connected tightly and
correctly
Reconnect the DIMM
LED board
System board
No beep, power-on indicator turns on and LCD is
blank.
Power source (battery pack and power adapter).
See “Power System Check” on page 69.
Reconnect the LCD connector
Hard disk drive
LCD inverter ID
LCD cable
LCD Inverter
LCD
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.
LCD inverter ID
LCD cable
LCD inverter
LCD
System board
No beep, power-on indicator turns on and a blinking
cursor shown on LCD during POST.
Ensure every connector is connected tightly and
correctly.
System board
No beep during POST but system runs correctly. Speaker
System board