A cooling system for an electronic device having a plurality of multistage circuit boards therein includes a plurality of inlet-side guides arranged in parallel on an inlet port side of the plurality of circuit boards in a direction of a flow of the air taken in from an inlet port. The inlet-side guides...http://www.google.com/patents/US6222729?utm_source=gb-gplus-sharePatent US6222729 - Electronic device cooling system having guides for guiding a flow of the air evenly
