Abstract: A cooling apparatus for cooling microprocessor based equipment is disclosed. The cooling apparatus comprises a rack mountable cooling unit and a cooling control module. The rack mountable cooling unit has a rack mountable housing sized to fit in a server rack, a fan disposed in the rack mountable housing, and a cooling unit disposed in the rack mountable housing. The cooling control module has a plurality of temperature sensors connected to a controller. The controller is connected to a fan control output to control a fan speed of the fan and a cooling unit control output to control a coolant flow through the cooling unit based on signals from the plurality of temperature sensors.

Abstract: A cooling apparatus for cooling microprocessor based equipment is disclosed. The cooling apparatus comprises a rack mountable cooling unit and a cooling control module. The rack mountable cooling unit has a rack mountable housing sized to fit in a server rack, a fan disposed in the rack mountable housing, and a cooling unit disposed in the rack mountable housing. The cooling control module has a plurality of temperature sensors connected to a controller. The controller is connected to a fan control output to control a fan speed of the fan and a cooling unit control output to control a coolant flow through the cooling unit based on signals from the plurality of temperature sensors.