k451 (S451LN) not turn on(die after a sec,stuck in G3)

[r ez a]

hi guys
i have a laptop here that it just working for less than a sec
voltages and signales are true for a sec and after that all voltages die
just 3&5V

no sus voltage
no RSMRST#

nothing changed by program bios n ec
is any error happend that it stucked in G3 mode?

tnx for ur help

[r ez a]

Re: k451 (S451LN) not turn on(die after a sec,stuck in G3)

its diffrent with battery
when it powered by battery,it respond to power key and turn on 1.05VSUS rail
totally different with ac mode

anyone has any idea whats wrong with it?