Hi guys,

This one (da0ut3mb8d0, dv6, discrete nvidia, ddr2) is making a clicking noise when the adapter is connected.

The 5V_ALWP and 3.3_VALWP have noise and also I can see noise with the oscilloscope on PL6 (I see pulses).

When I remove the CPU then the noise disappears and 5&3V_ALWP stabilize! NO NOISE.

I tried different CPU, I replaced ISL6262A (PU1), I measured for short and also disconnected 330uF capacitors. No solution.

When PL6 is also disconnected then again there is no noise and the machine can TURN ON! I do not have the LCD but extrernal monitor gives no image... the CAPS lock is flashing, VCORE=0V and I already tried flashing the BIOS.

Is it maybe the VGA? Will try to reball it today...

any other ideas about the clicking? If I connect PL6 the clicking comes back and there noise in the motherboard. no turning on.

br,
geoge

unfortunately no solution found, the laptop was returned to the customer.