MSI GE62 6QC Apache MS16J5 Power Unit PU12 make 9V not 5 on 5valw

[Ferit37]

Hallo i like to know, is my neu chip damaged or something else?
My MSI Apache had no 3.3v and no 5.0v. So i replaced the
Powerchip TPS51225C.
It was pretty hard to solder the Thing.
this is the device.
https://cdn.badcaps-static.com/pdfs/...ec166607a5.pdf



On pin 3 i have now nice 3,3V but on Pin 13 there is 8-9V.
So what have i done wrong?

Thanks so fare.

[Ferit37]

Re: MSI GE62 6QC Apache MS16J5 Power Unit PU12 make 9V not 5 on 5valw

Is ti possible i just burned the chip till i solder it to hot?

[caspian]

Re: MSI GE62 6QC Apache MS16J5 Power Unit PU12 make 9V not 5 on 5valw

It is possible. Watch youtube videos on how to solder QFN chips properly. measure voltage and resistance on pins 3, 12, 13 to check. sometimes such things happen after soldering, then a reflow of the IC may fix the problem.