San Jose, CA (January 20, 1999) - SUPERMICRO Computers, Inc. has begun incorporating its patented Redundant Cooling Power Systems into their SC-760 Model server chassis. These innovative power supplies intelligently detect and respond to increases in temperature resulting from high system loads, fan breakdown or other reasons.

The system includes an additional back-up fan, which operates independently from the primary fan, and a thermal control circuit that includes a solid state temperature sensor. This sensor detects ambient temperature changes inside the power supply and is connected to the fan power drives of both the primary and back-up fans. The thermal control circuit works with the temperature sensor to trigger a response whenever specific high and low temperature thresholds are exceeded. This circuitry enables the primary fan to increase its RPM simultaneously with increases in the ambient temperature until reaching full speed at 40° C.

Power supply fans inevitably break down over long periods of use simply due to their parts wearing out. When this happens or if the ambient temperature is detected as exceeding approximately 68° C, the back-up fan automatically turns on, an alarm sounds and a warning LED is illuminated. An external button is available to deactivate the alarm, but the LED remains lit to continuously warn of the situation until corrective measures have been taken.

System administrators can now have advanced warning of fan breakdown or dangerous rises in the power supply temperature. Moreover, their system will be protected until it can be safely shut down to replace the primary fan or to correct any unrelated cause of heat problems. This innovation in power supply cooling technology is ideal for servers or workstations, where system integrity is critical. It promises to bring about a dramatic decrease in heat-related system crashes.

Redundant Cooling Power Supply Specifications

• Available for 400 W and 300 W power
• Equipped with ball bearing fan
• 150 x 86 x 170 mm (WxHxL)
• +5V, -5V, +12V, -12V output
• UL, CSA, TUV, CE certified

SUPERMICRO is a leading supplier of high-end motherboards and servers. Since its founding in 1993, SUPERMICRO has led the industry in delivering cutting-edge technology such as a solution for the I20 architecture and the Redundant Cooling Power System. SUPERMICRO strives to build long-term relationships with its customers by providing outstanding engineering innovations, quality and reliability. SUPERMICRO’s server building block solutions decrease systems integrators’ time-to-market by ensuring the interoperability of all components. All SUPERMICRO products are available through OEMs and distributors. For more information, contact SUPERMICRO by phone at (408) 895-2000, via fax at (408) 895-2008, through e-mail at marketing@supermicro.com, or visit SUPERMICRO on the Internet at http://www.supermicro.com.