A computer system includes a computer cabinet, a plurality of printed circuit boards housed within the computer cabinet, a processor secured to at least one of the printed circuit boards, a power supply cabinet remote from the computer cabinet, a power supply housed within the power supply cabinet and a signal interconnect unit, coupled to the computer cabinet and the power supply cabinet, for providing an electrical path between the computer cabinet and the power supply cabinet. The printed circuit boards and the slots into which they are inserted have corresponding color code labels. The purpose of this is to clearly identify the location of the slot which corresponds to the printed circuit board of the same color.