Abstract: A power supply unit (PSU) has walls which define an internal volume of the PSU. A metal sheet forming left and right side walls and an upper wall is provided with plural perforations on each of those walls. The perforations are circular in shape, and formed in a regular grid pattern. The perforations are formed by punching the metal sheet before it is bent into shape. The perforations in the housing of the PSU allow hotspots to be carried through the walls of the housing of the PSU, following which the hotspots are unable to damage internal components of the PSU. This allows the use of reduced flow rate fans.

Abstract: A media centre computing device includes a housing, and a mains-powered personal computer motherboard including a main processor with a heatsink disposed at or near to one edge of the motherboard and connectors disposed at an adjacent edge of the motherboard, the motherboard being secured in the housing with the connectors contacting the rear face of the housing and the main processor being disposed adjacent a first side face of the housing and in the proximity of a first vent formed therein. The device also includes a power supply secured to the housing and proximate to rear and second side faces of the housing, and a fixed mass-storage device and a removable memory media drive located one above the other in the volume between the power supply and the front face of the housing. Media being transportable to and from the removable memory media drive though an aperture in the front face of the housing.