Asus AP3000 Hardware Reference - Page 19

IV. Hardware Setup • 4-2. Rear Cooling Fan Control Board The rear fans are controlled and monitored by a control board. The fan control board requires power input from the power supply which allows the individual fans to obtain their power when connected to the control board. The control board also sends fan status information to the LEDs located on the front of the server and to the ASMA software. The fan control board's cable connections are shown below. Fan Fan Power Connectors Reserved Connector Fan Status Signal Connector Power Input Connector Fan Control Settings Reserved Fan Connectors Rear Cooling Fan Control Board Settings The rear fan control board has DIP switches to allow controlling the control board status and the number of fans. DIP Switch SET1 Fan Control Board Setting ON (momentarily) Reset Control Board OFF Normal (Default) SET2 SET3 ON ON ON ON ON OFF ON OFF OFF ON OFF ON OFF OFF OFF OFF SET4 ON OFF ON OFF ON OFF ON OFF Number of Fans 1 2 (Default) 3 4 5 6 7 8 IV. Hardware Setup Rear Fans AP 3000 Hardware Reference Guide 19