Voltaje range 5V to 20V on Mabook air A2337 820-02016-A Find a Short on

[Alejandro]

Hello Good Morning My name is Alejandro i Am New in the Forum
i find a short in PP1V06_S2SW_DRAM but i don't know if is possible inject voltage to find the short because this going direct to the Processor The measurement in diode to ground gives 0.002

 

[2informaticos]

First of all, welcome to the forum!

Very likely bad M1 CPU; is the most sensitive there.

Injecting 1-1.3V into 2-3 ohm will probably not generate enough heat.
Using IR thermal camera may help.
However DRAM chips are soldered on top of CPU.

 

[Alejandro]

Antes que nada, ¡bienvenido al foro!

Muy probablemente una CPU M1 defectuosa; Es el más sensible allí.

Inyectar 1-1,3 V en 2-3 ohmios probablemente no generará suficiente calor.
El uso de una cámara térmica IR puede resultar útil.
Sin embargo, los chips DRAM están soldados encima de la CPU.

Good morning, thank you very much for the help, in case it gets hot where the Dram would already be a problem and there would be no solution?
Antes que nada, ¡bienvenido al foro!

Muy probablemente una CPU M1 defectuosa; Es el más sensible allí.

Inyectar 1-1,3 V en 2-3 ohmios probablemente no generará suficiente calor.
El uso de una cámara térmica IR puede resultar útil.
Sin embargo, los chips DRAM están soldados encima de la CPU.

 

[2informaticos]

I don't know if is possible to change DRAM only.
Maybe Apple have paired them with M1 CPU...

Por favor, manten el aspecto del foro.
Escribe directamente en la casilla de reply, en vez de darle click al Reply.
No veo por que repetir un post visible unos centimetros mas arriba.

 

[Alejandro]

No sé si es posible cambiar solo la DRAM.
Quizás Apple los haya emparejado con una CPU M1...

Por favor, mantenga el aspecto del foro.
Escribe directamente en la casilla de respuesta, en vez de darle clic en Responder.

Good Morning, sorry if i use a wrong replay option
I have injected the voltage where I explained it previously but nothing, there is hardly any consumption and nothing seems to heat up, it could be that it is too little voltage, I really appreciate the help because in this case I can't find a solution

 

[2informaticos]

I already told you what is the maximum voltage you can use.
Set first amp imit on lab PSU to max; or at least higher than 4A.

Injecting 1V into 3 ohm resistance will generate 300mA aprox.
That means 0.3W, not possible to detect with the fingers.