ASUS A68HM-K REV1.00有时会自动开启电源，有时不会触发并重设

会员523053 · 发表于 2020-1-3 18:17:41

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ASUS A68HM-K REV1.00 sometimes automatically power on, sometimes it does not trigger and reset

Power switch voltage up and down

Sometimes 2.97V, 1.45V, 1.79V,
with
Corrected 1.45V at some time

After finding it I checked 1.45V

It comes from 3VSB.
3VSB is converted from 5VSB

3VSB comes from PU601.
I check if PU601 has a device circuit
PU601 PIN 2 is connected to PR604, it is 1.27K, but I removed and checked it.

Its value is becoming 8.5K

I changed 1.27K to 1.50K.

After non-automatic startup, the trigger is successful, and the code is run and displayed perfectly.