They mention this phenomenon often on the RCR podcast http://rcrpodcast.com/ http://rcrpodcast.com/ the problem tends to be the power supplies going wrong, caus

They mention this phenomenon often on the RCR podcast http://rcrpodcast.com/ http://rcrpodcast.com/ the problem tends to be the power supplies going wrong, causing surges that fry the computers. New modern power supplies for old computers is their recommendation, rather than risk using the old supply and damaging good hardware. Too late now though!