I came home from a vacation to find my computer conpletely dead, im assuming it's lightning from major storms that rocked south ontario last week. I have noticed that I have deposits of copper sulfate on my copper heat sink and cpu cooler made by zalman. I am wondering what would cause this. Im sure it must be bad because I know it builds up on car batteries. Anyone know why I would be getting this copper sulfate? I googled it and could not find any related posts. Cheers.