Damaged PC after thunderstorm

Originally Posted by aries100
In Denmark all houses and apartments are required by law to have an HFPI-box? to prevent this from happening, I think? The electric current will then go through the box, and the mechanism in the box will shut the power off immediately.

This may not work. When there is a nearby lightning strike it can cause induced spikes in the wiring past any "cutoff" box. That is why you still need to use local surge protectors on sensitive equipment.

Latest update:

We ordered a new internet & phone device.

The mainboard is okay, the CPU is broken.