Abstract: An information processor having a normal-operation mode in which coherence control is performed for making data in a cache memory of a processor identical to data in a main memory and a power-saving mode in which the coherence control is suppressed to lower the power consumption from power consumption in the normal-operation mode and entering the normal-operation mode when an input/output device accesses the main memory in the power-saving mode includes an attribute setting module for setting a device area of the main memory, accessed by the input/output device of the information processor to a non-cacheable attribute for exempting said device area from said coherence control even in the normal-operation mode; an operation mode setting module for allowing the input/output device to access the device area while keeping the operation mode of the information processor in the power-saving mode when the input/output device requests access to the device area in the power-saving mode.

Abstract: An assembly for dissipating heat generated by electronic components, the assembly designed to include a computer chassis dimensioned to substantially enclose the electronic components. The assembly is further designed so that the chassis includes a panel having a substantially flat portion and a non-flat portion with the non-flat portion including a plurality of vent holes and having a surface area that is greater than the surface area of a flat portion with corresponding outer dimensions so as to permit an increase in the number of vent holes and improvement in the air flow within the computer chassis while at the same time maintaining the structural integrity of the computer chassis and minimizing electromagnetic interference resulting from the percentage of open area to closed area within the venting surface.