Airflow Pattern
As with most computers, the rear fan and power supply fan exhaust, moving hot air away from the computer. This causes a slight depressurization inside the chassis, and requires all other openings to become intake vents. Airflow from the front of the chassis moves around the Chassis Air Guide, allowing the processor fan to only draw air from outside the chassis, providing more effective cooling.
Read more about this topic: Thermally Advantaged Chassis
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