"The following table illustrates the meaning of blink codes used on some notebooks with EFI environment.
The blink or beep codes on your computer may have different meanings. When you contact HP for
support, the agent needs to know the model of your computer and may ask you about blinking LEDs
or beeping tones to help troubleshoot a startup problem.Meaning of Sample Blink Codes for some EFI Notebooks Number of Blinks or BeepsLocation of Blinking LEDsComponent Being CheckedError Condition
Continuous glowBattery power LEDBatteryThe AC adapter is attached and the battery is charging, but does not yet have sufficient charge to power the notebook.
1time---Caps Lock/Num Lock-----CPU------------------CPU not functional
2time---Caps Lock/Num Lock-----BIOS----------------BIOS corruption failure
3time---Caps Lock/Num Lock-----Memory-------------Module error not functional
4time---Caps Lock/Num Lock-----Graphics--------------Graphics controller not functional
5time---Caps Lock/Num Lock-----System board----------General system board failure
6time---Caps Lock/Num Lock-----BIOS-------------------BIOS authentication failure
Continuous blinkAC power adapter LEDPower adapterInsufficient power"
The blink or beep codes on your computer may have different meanings. When you contact HP for
support, the agent needs to know the model of your computer and may ask you about blinking LEDs
or beeping tones to help troubleshoot a startup problem.Meaning of Sample Blink Codes for some EFI Notebooks Number of Blinks or BeepsLocation of Blinking LEDsComponent Being CheckedError Condition
Continuous glowBattery power LEDBatteryThe AC adapter is attached and the battery is charging, but does not yet have sufficient charge to power the notebook.
1time---Caps Lock/Num Lock-----CPU------------------CPU not functional
2time---Caps Lock/Num Lock-----BIOS----------------BIOS corruption failure
3time---Caps Lock/Num Lock-----Memory-------------Module error not functional
4time---Caps Lock/Num Lock-----Graphics--------------Graphics controller not functional
5time---Caps Lock/Num Lock-----System board----------General system board failure
6time---Caps Lock/Num Lock-----BIOS-------------------BIOS authentication failure
Continuous blinkAC power adapter LEDPower adapterInsufficient power"