Couple days ago a lightning hit couple metres away from house, I lost all the power for 2 seconds and as a result my modem and gpu fried, socket that my monitors was connected to burnt and it is not working anymore. I want to know what exatly fried my gpu, can it be my ethernet cable since my modem was also burnt or is it possible my monitor's hdmi cable carried the surge to my gpu since the burnt socket was connected to the monitor.
I want to prevent same thing happening so I want to figure out what might be the reason and how can I protect my devices.