Hello
i have a Lenovo M5400 DA0BM5MB8D0 Rev. D
when i connect the AC adapter the Power LED is blinking 3 times, and THAT is ALL. It will not power ON, or do anything!
I have 3.3v on power button, i have 3.3v and 5V on motherboard.
Also tried to Flash 2 versions of BIOS (both EC and KBC).
not shure but i think is a bios problem. if anyone has WORKING and TESTED dump, please share.

viewtopic.php?p=663427#p663427
или
http://vlab.su/viewtopic.php?p=179234#p179234

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Information is the most dangerous weapon of all...

thank you for your reply, i tried both versions of bios but still the same...
the laptop won't power on! the only sign of life is the battery LED flashing green 3Times when i connect the charger.
any other ideea what can be wrong?

no one? no ideea?
do you have datasheet, schema for this board?

Hello
my version of MB had both BIOS and EC, Meaning U44(25L32) and U45(25L64)
i measured Vcc(pin 8) on the chips and after charger is connecte i have no Vcc and after i press the porwe button i get 3,33V ONLY on U44. i have no Vcc on U45.
anyone have a datasheet for this motherboard?