Also, ever wonder why PCP&C advocates single rail power supplies as being "the only true way" to make a power supply? Or ever wonder why PCP&C, given that they do advocate the prior statement....single rail is best.....made a tri-rail Turbo-Cool 1kw power supply? (They did, you know......)
So what happened to make PCP&C dump their original design for a single rail v.2 of the same power supply, called the Turbo-Cool 1KW-SR....(note the SR at the end to differentiate it from the poorly engineered or thought out tri-rail design of theirs.)
Synopsis: This particular power supply is an example of a company producing a power supply with three +12V rails, something that in theory should have provided MORE than ample power to a high end gaming rig, and screwed up. This PSU company somewhat followed EPS12V specifications, which is for servers, not "gamers". They put ALL of the PCIe connectors on one of the +12V rails, +12V3, instead of a separate +12V rail. The +12V rail was easily overloaded and caused the PSU to shut down...this rail, incidentally, also was responsible for powering all the hard drives you may have been using, all the Molexes, etc. So, you throw a pair of highend video cards in Crossfire or SLI, some hard drives, optical drives, fans, whatever else you have in your computer, begin gaming, and overload the rail.....shut down.
Instead of correcting the problem, they just did away with the splitting of +12V rails altogether.
So, PCP&C's FUD (Fear, Uncertainty, and Doubt) they cast about split rail power supplies comes from them simply poorly engineering their own multi-rail design and rather than fix it, they trashed it and went to a single rail design.....easier to build, a hair cheaper to build, and no pesky difficulties in engineering a proper multi-rail design that won't trip off from being overloaded.