How much does it cost to repair a laptop motherboard?

Question

laptops

Laptop HP 650 is broken! When opened, a melted chip was found on the motherboard near the place where the power wire is connected
. How much do you estimate the repair and is it possible? or you will have to change the PS motherboard
earlier in the above-mentioned model, the cooling fan stopped spinning, asked a question about it, set lm_sensors and so it worked until today

Answer 1

A group of input transistors burned out.
If only this component failed, then you are in luck.
Hand it over to the workshop, preferably, of course, to the service center of the manufacturer itself.
Diagnostics will show what the scale of the disaster is.

Answer 2

In the region of 3.5 tons, if not staggered, either of the bga components.