A1708 - 820-00840-A No Power

Mike_4046

New member
Hi,

I have a MacBook Pro 2017 A1708 820-00840-A board with no power. The board is requesting19.69v and draws about 0.180mA then goes to about 0.355mA. After about 10 seconds or so from the charger being plugged in and the amp draw increasing to 0.355mA it goes back down to 0.000 then goes back up to 0.355mA and hangs there. The CPU is warming up after a minute or 2 while the charger is connected. USB mouse also gets power if that somehow helps?

I measured L7210 with my multimeter and it reads 0.95v and doesn’t come down.

not sure what to do. Any help would be appreciated.

board isn’t liquid damaged either.
 

2informaticos

Administrator
Staff member
First of all, welcome to the forum!

There should be some fault history, even not liquid damaged.
Test the board alone on the desk; nothing more than cjarger connected.
CPU core should drop to 0.6V aprox, when the board boots.

You can try known good BIOS.
 
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