HP Elitebook 8440p charging light blinking not booting

[Ashokkan]

Hawie,  that is right.   The caps lock blinking can be due to the issue with the bios or CPU failure .. Now, that depends on the pattern of blinking .  

Like :   if the caps lock blinks once, then it will be a CPU  issue ..    2 blinks , issue with BIOS ..  more than 6  blinks relates to BIOS authentication .. like that the list goes on .. 

I can tell you the list , if you would be interested .  

[hawiie]

The charging light is the only one there that is blinking when turning on then fan run fast.
But somethimes i saw caps and num lock are blinking 5x , 4x, sometimes 2x. But my laptop is not totally dead sometimes it turn on.
Then I do Some Hardware test and everything is fine but at the systemDiag log file
I see error 'HP Battery Control Protocol 2010' Not found.

[Ashokkan]

Well .. if the computer is working fine, then we can continue to use it , and hope it does not give any more trouble.  You may need to contact HP Support , only if the issue re-occurs .. The message Battery control protocol , not found .. can be ignored , if the computer is working fine.. 

Regards,

Ashok

[hawiie]

Thats good it works fine but i didnt.
There are more times that is dead than working

[hawiie]

I ordered motherboard i think problem is motherboard i ll be back if its okay.

Thanks for the time