Asus X1403ZA rev 2.1 no power short on main

[shiyab]

I injected 1V/5A for about 20 mins, the cpu feels a little bit warmer than the rest of the board. No other components feel warm.
IPA on CPU vaporises very slow, but little faster compared to other areas.
So this is probably end of story ?

BORD 2 SIDE PIC

[Jane]

Did you you find a solution?
I have the problem like you ( to find the culprit.of a short). I injected about 0.9V , upto 5A , the board takes current about 0.6A, yet, temperature of the PCB board is about 31C degrees.
I keep injecting upto 30 minutes, yet no result, regarding heating
I have Asus FA506 ( board DA0BKXMB8D0 Rev: D)

[johnbeton]

here are pictures of the 2 sides of the board.
I did not find the solution yet. If it is CPU or PCH it is beyond repair for me

[johnbeton]

Hi, to come back to this laptop. I still had this laying around and because I couldn't sleep I picked this repair up, it's been a long time, but the owner bought a new on back when it broke, and didn't expect a repair. But I could not believe the 19v rail would directly warm up the CPU with voltage injection.

So what I did was remove the bridges PJP8101 and PJP8102 to isolate the 2 sides of the board.
The short was on P_IMVP9.1_VCCCORE_VIN_S
I injected 1V 3A on that side of the board, but again only CPU/PCH warmed up slightly after 15min.
So my guess was one of the mosfets PQH8101, PQH8102, PQH8103 was shorted, because I had 0.01Ohms resistance between Source and drain.
Removed all 3 off them to find out PQH8101 was shorted.
I replaced the shorted mosfet and the short is gone.

PJP8102 was pinched by a screw, I had to cut the trace because it was shorting to ground. Therefor fixing the bridge with a blop of solder is not possible. I soldered a wire from C6902 pin 1 to PCI8102 pin 1.

The laptop now powers up and starts, but it seems to run unstable. It freezes (mouse / keyb not responding).
I was wondering if this could be the bigger caps PCE8101 and PCE8102 that got too hot when I replaced the nearby mosfets ?