turn off mediately after power on model hp probook 450 G1

[ALLEN martin]

i have thi issue is turn off mediately after power on model hp probook 450 G1
rampage mb 12241 1

[mon2]

Re: turn off mediately after power on model hp probook 450 G1

See attached.

Review the first 2 x DCIN mosfets.

First, remove all power. Then configure the meter in resistance mode.

Confirm which pin is # 1 on the mosfet. It should be in the TOP LEFT corner.

Pin # 2 will be immediately south of this pin -> 3 -> 4.

Pins 1-2-3 will be shorted on the circuit board. Confirm it so you have a proper orientation of the component.

Check:

source (1-2-3) & drain (5-6-7-8)
source (1-2-3) & gate (4)
gate (4) & drain (5-6-7-8)


Post the resistance values of the first mosfet. Repeat the test for the 2nd mosfet.