820-3115 - Short on DCIN

[dukefawks]

Get a PSU to inject voltage to see what heats up.

 

[smiba]

What is the recommended voltage to test it with?

Since it's the amps causing the heat up, would supplying just 1V be good enough? Or is it recommended to still use 16V?

 

[Repairable]

max voltage is wat is the max on that line, so pp3v3 has a max of 3,3volt etc volt is also your max on psu.

i would recommend start on 1 volt and go up in small steps
kick current up is what i do

 

[dukefawks]

You start low and monitor the current. At 1 Amp something should start to heat up

 

[smiba]

Started at 1 amp but the board was totally cold

Moved up with 1 amp every minute. Its been running at 5amp for 10 minutes now and the only thing heating up is the wire going towards the board

Internal short?

 

[dukefawks]

Yup, short in the board. You can try to isolate it. But this board should run from battery if the only thing wrong is the short on DCIN.

 

[smiba]

Tried to run it off battery but it was missing most (if not all) S0 lines. SMC_G2_EN was low but 3.42V is there

Not worth my time honestly, thanks anyways!