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.

nobody had this problem?

I advise you to check the startup sequence.
Or refer to the service center.

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?

brogdan
No schematic for this platform yet.
If you havn't repair skill without schematic - refuse this mobo.

schematic download/file.php?id=66071