An apparatus for a computer system (100A, 100B) having a plurality of fans, wherein the apparatus comprises: a plurality of bars (114a, 114b); a plurality of slats corresponding to the plurality of fans, wherein each slat of the plurality of slats is pivotably coupled to a separator housing; a knob received at a receiving portion (220, 223) on each bar (114a, 114b) of a first pair of bars (114a, 114b) in the plurality of bars (114a, 114b), wherein rotation of the knob causes the bars (114a, 114b) of the first pair of bars to slide longitudinally in opposite directions between a plurality of positions; wherein each bar (114a, 114b) in the plurality of bars (114a, 114b) comprises a plurality of indented portions (340, 350) corresponding to slats in the plurality of slats; wherein the plurality of positions further comprises: a first position, wherein each slat in the plurality of slats is configured to pivot in a first direction upon receiving airflow in the first direction and to lie adjacent to neighboring slats in the plurality of slats and perpendicular to the first direction when no airflow is received in the first direction; and a second position, wherein each slat in the plurality of slats is further configured to pivot in a second direction upon receiving airflow in the second direction and to lie adjacent to neighboring slats in the plurality of slats and perpendicular to the second direction when no airflow is received in the second direction; wherein the plurality of indented portions are configured to stop the rotation of the slabs towards the first direction, and the plurality of indented portions are configured to stop the rotation of the slabs towards the second direction; and wherein the first direction is opposite to the second direction; and at least one pin coupled to one of the plurality of bars of the first pair of bars. a plurality of bars (114a, 114b); a plurality of slats corresponding to the plurality of fans, wherein each slat of the plurality of slats is pivotably coupled to a separator housing; a knob received at a receiving portion (220, 223) on each bar (114a, 114b) of a first pair of bars (114a, 114b) in the plurality of bars (114a, 114b), wherein rotation of the knob causes the bars (114a, 114b) of the first pair of bars to slide longitudinally in opposite directions between a plurality of positions; wherein each bar (114a, 114b) in the plurality of bars (114a, 114b) comprises a plurality of indented portions (340, 350) corresponding to slats in the plurality of slats; wherein the plurality of positions further comprises: a first position, wherein each slat in the plurality of slats is configured to pivot in a first direction upon receiving airflow in the first direction and to lie adjacent to neighboring slats in the plurality of slats and perpendicular to the first direction when no airflow is received in the first direction; and a second position, wherein each slat in the plurality of slats is further configured to pivot in a second direction upon receiving airflow in the second direction and to lie adjacent to neighboring slats in the plurality of slats and perpendicular to the second direction when no airflow is received in the second direction; wherein the plurality of indented portions are configured to stop the rotation of the slabs towards the first direction, and the plurality of indented portions are configured to stop the rotation of the slabs towards the second direction; and wherein the first direction is opposite to the second direction; and wherein each bar (114a, 114b) in the plurality of bars (114a, 114b) comprises a plurality of indented portions (340, 350) corresponding to slats in the plurality of slats; wherein the plurality of positions further comprises: a first position, wherein each slat in the plurality of slats is configured to pivot in a first direction upon receiving airflow in the first direction and to lie adjacent to neighboring slats in the plurality of slats and perpendicular to the first direction when no airflow is received in the first direction; and a second position, wherein each slat in the plurality of slats is further configured to pivot in a second direction upon receiving airflow in the second direction and to lie adjacent to neighboring slats in the plurality of slats and perpendicular to the second direction when no airflow is received in the second direction; a first position, wherein each slat in the plurality of slats is configured to pivot in a first direction upon receiving airflow in the first direction and to lie adjacent to neighboring slats in the plurality of slats and perpendicular to the first direction when no airflow is received in the first direction; and a second position, wherein each slat in the plurality of slats is further configured to pivot in a second direction upon receiving airflow in the second direction and to lie adjacent to neighboring slats in the plurality of slats and perpendicular to the second direction when no airflow is received in the second direction; wherein the plurality of indented portions are configured to stop the rotation of the slabs towards the first direction, and the plurality of indented portions are configured to stop the rotation of the slabs towards the second direction; and wherein the first direction is opposite to the second direction; and at least one pin coupled to one of the plurality of bars of the first pair of bars.