820 3787, 3 beeps

[Noguinfor]

Hey,

No liquid or components knock off!

when i plug the charger the motherboard beep 3x!

Already unplug all connectors trackpad, keyboard, etc. Same history no changes.

any ideas ? Can't find nothing related on posts...

thanks

 

[2informaticos]

RAM error.
You can try to reflow ALL RAM chips, but no warranty at all.
Could be broken solder under CPU, or any RAM chip.
Broken trace is also possible.

 

[Noguinfor]

OK,

I Already moved the ram chips one by one with flux and the machine come to life. Let's see how much time it is during! Thanks