Method and apparatus for acoustic noise reduction in a computer system having a vented door including a pivotable vented base and a pivotable outer door

A computer system, comprising:

• an electronic component package;
• an enclosure for containing the electronic component package, the enclosure including a front panel, a rear panel, a top panel, a bottom panel, and two side panels;
• an air moving device for passing air through the enclosure;
• a vented base pivotably attached to the enclosure, the vented base being pivotable between a closed configuration where the vented base abuts against a selected one of the panels and an open configuration where the vented base is pivoted away from the selected one of the panels, the vented base having one or more airflow apertures at least of portion of which includes an acoustic noise reduction lining;
• an outer door pivotably attached to the vented base and wherein at least a portion of the outer door includes an acoustic noise reduction lining, wherein the outer door is generally T-shaped having two wine-shaped portions extending from a base portion, and wherein the base portion of the outer door is pivotally attached to the vented base by at least one hinge pin.