Patent ID: 8659895

Claim:
A computer data center system, comprising: a plurality of stacks, each of the stacks having a plurality of computer motherboard assemblies arranged vertically with respect to one another; a first row of the plurality of stacks, the row defined by a first subset of the plurality of stacks arranged adjacent to each other in a horizontal line; and a cool air supply plenum adjacent to the first row of the plurality of stacks, the cool air supply plenum (a) being arranged to supply cool air to a first side of the first row of the plurality of stacks for cooling the computer motherboard assemblies placed in the stacks of the first row of the plurality of stacks, and (b) having a longitudinal axis substantially parallel with an average air flow of cooling air in the plenum, wherein the computer motherboard assemblies in the first row of the plurality of stacks include portions that are substantially closer to the longitudinal axis of the cool air supply plenum than (a) other portions of the same computer motherboard assemblies; or (b) portions of adjacent computer motherboard assemblies that are closest to the longitudinal axis for the computer motherboard assemblies in adjacent stacks of the first row of the plurality of stacks.