Asus P5AD2-E Premium User Guide - Page 54

12. Serial port connector (10-1 pin COM1) This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis. COM1 PIN 1 ® P5AD2-E PREMIUM P5AD2-E PREMIUM Serial port connector 13. CPU, Chassis, and Power Fan connectors (3-pin CPU_FAN1, PWR_FAN1, CHA_FAN1, CHA_FAN2) The fan connectors support cooling fans of 350 mA ~ 2000 mA (24 W max.) or a total of 1 A ~ 3.48 A (41.76 W max.) at +12V. Connect the fan cables to the fan connectors on the motherboard, making sure that the black wire of each cable matches the ground pin of the connector. Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors! CPU_FAN1 GND CPU FAN PWR CPU FAN IN CPU FAN PWM P5AD2-E PREMIUM GND +12V Rotation PWR_FAN1 ® CHA_FAN1 Rotation +12V GND P5AD2-E PREMIUM Fan connectors CHA_FAN2 GND +12V Rotation Only the CPU_FAN1 and CHA_FAN1 connectors support the ASUS Q-Fan 2 feature. 2-32 Chapter 2: Hardware information