lenovo g50-30

[mazloum]

aclu9/aclu0 rev 1.0

when pressing power it will work for exactly 38 secons and completely shutts off.
with and without battery the same

[mazloum]

Re: lenovo g50-30

it will hut down exactly after 40 seconds and not 38 as i mentioned:
when i try to boot it again, the same time it will take to shutoff
i changed ram, reset bios, with no success

[piernov]

Re: lenovo g50-30

Known good power supply with the proper power rating?
Maybe try clean ME region BIOS.

[mazloum]

Re: lenovo g50-30

I found the problem here... Pin 1 must be 3v but it has no volts. The ic is u3901 which is sensor.

[mazloum]

Re: lenovo g50-30

Is there any alternative for this ic?

[mazloum]

Re: lenovo g50-30

Is there any alternative for this ic?
I need to give it 3v but it is very small and cannot solder any wire there

[Chieftain]

Re: lenovo g50-30

Check pu701.