Multiple +12V rails, as it pertains to computer power supplies, typically doesn't mean there are multiple +12V rails (although a few high powered units actually may have two individual +12V outputs). Computer power supplies typically take their single +12V output and split it up into two, three, four or more +12V circuits. Each of these circuit have an "OCP", which stands for "Over Current Protection" on them that limits how much power each rail can deliver. Even on the rare occasion of a power supply with true multiple +12V outputs, it's not uncommon for these outputs to be split up two to three more times producing five or six +12V rails.
Add our RSS feeds to your favorite RSS Reader or homepage.