X540UBR REV 2.0, No Power

[Jmine]

The 3v/5v IC (2n5bto7) was getting hot when connected to PSU and I measured the resistance to the ground of every pin.
phase2 pin and vclk were shorted to the ground. to determine the direction of the short, I disconnected the coil which was connected to phase 2 and the short was not from the IC, but from the power rail.
I injected 1V to see what was getting warmer, about 500mA current draw was observed and The PCH side of the SoC is getting warmer.
I have 2 Questions for you guys,

Is the vlck low resistance to the ground normal?
It is safe to assume that the PCH is Done?

[mcplslg123]

Re: X540UBR REV 2.0, No Power

If PCH part of SOC is getting hot at 1V injection and consumption of 500mA does indicate a shorted PCH.

[Jmine]

Re: X540UBR REV 2.0, No Power

If PCH part of SOC is getting hot at 1V injection and consumption of 500mA does indicate a shorted PCH.

Does that mean when injecting voltage a good pch must not get warm at all?

[mcplslg123]

Re: X540UBR REV 2.0, No Power

It may get a little hot. Its the consumption on dc supply which indicates whether its shorted or not. there is no fix scale to declare a pch shorted.