Abstract: A computer system includes a cabinet, a plurality of trays located in the cabinet and having a plurality of computer components mounted thereon, a first port mounted on a rear panel of the cabinet that receives a three-phase AC input to the cabinet, a power distribution unit that converts the three-phase AC input to a plurality of AC signals each having fewer than three phases, a plurality of rectifiers, and a power distribution bus. The plurality of rectifiers convert the plurality of AC signals to DC power. The power distribution bus distributes the DC power. Each of the plurality of rectifiers is coupled to the power distribution bus. The tray receives the DC power from the power distribution bus.

Abstract: A computing system and method of operating a computing system is provided.

Abstract: A power supply for use in a negative pressure computer system is provided, including: an enclosure; an air exhaust port provided on a first side of the enclosure; an air intake port provided on a second side of the enclosure, said second side being adjacent to the first side having the exhaust port; and an air mover configured to draw cooling air into the intake port and exhaust cooling air out of the exhaust port. A computer system is provided, including: a chassis; a printed circuit board (PCB) mounted in the chassis; one or more computer components coupled to the printed circuit board; a power supply for supplying power to the one or more computer components.