Airflow management apparatuses for computer cabinets and associated methods are disclosed herein. The computer cabinets include a plurality of computer modules positioned between an air inlet and an air outlet and an air mover configured to move a flow of cooling air from the air inlet, past the plurality of computer modules, and out the computer cabinet via the air outlet. The computer cabinets carry an airflow restrictor positioned proximate to the air outlet. The airflow restrictor is configured to restrict the flow of cooling air through a portion of the computer cabinet to achieve a desired temperature profile in the computer cabinet.