MacBook Air 2020 A2179 820-01958 - Water damage - clicking sound in the CPU area

[2informaticos]

Check R7665/85.
Replace C7669/89.

Do you get voltage at L7700 and L8100/50?

A2179 (similar to A1932) suffers a lot because of audio board corrosion.
Remove and inspect it, as audio flex too.

 

[stef4n]

U7100,
Pin 41: 12.55V,
pin 42: 5.1V
pin 48: 0.81V

Is it normal to have PPV1V05_S0_CPU to 0.988V?

 

[2informaticos]

Looks like bad CPU...

 

[stef4n]

R.I.P then
CPU dead, data lost....

Thanks for your assistance, 2informaticos