When will –12V go the way of –5V?
Posted: April 25th, 2014, 12:58 amI'm guessing it will happen about 3 to 5 years after PCI slots, along with the headers for COM ports, are out of the mainstream. Any subsequent device that really needs a negative supply (or specialty mainboards retaining the legacy connectors) can just generate one from a positive supply with a buck-boost converter — as HDDs have long used to get a –5V supply for their head preamplifiers. Any other ideas?