A system for cooling a CPU of a computer within a computer case, the system being characterized by having low noise emission levels, the system comprising:a CPU-cooling unit including a thermoelectric component (TEC) couplable to mains for power supply; a cold side heat sink coupled to the TEC and in thermally conductive contact with the CPU; a hot side heat sink coupled to the TEC; a CPU fan attached to the hot side heat sink for pulling heated air from the hot side heat sink; and an electronic controller; a CPU temperature sensor coupled to the cold plate and to the electronic controller for sensing the temperature of the CPU and providing an indication thereof to the electronic controller; wherein the electronic controller is controllingly coupled to the CPU fan for varying fan speed in accordance with the sensed CPU temperature and with software algorithms.
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