I run several servers in a small room with little ventilation. The tempurature is routinely 15-20*F above the out door tempurature and at least 10*F above the rest of the building. I traced the source of the heat to the exhaust of the servers' power supplies. They blow a constant 90*F stream of air. Since I can't do anything to alter the air conditioning of the room, is there a cooler running brand of power supply of about 450w that I can install on the servers?