Asus AP1720-I5 PRL-DL M/B User Guide - Page 49

6. CPU, Chassis, and Power Fan Connectors (3-pin FAN1, FAN2, FAN3, FAN4) The fan connectors support cooling fans of 350mA~740mA (8.88W max.) or a total of 1A~2.22A (26.64W 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. Lack of sufficient air flow within the system may damage the motherboard components. These are not jumpers! DO NOT place jumper caps on the fan connectors! FAN2 Rotation +12V GND ® PRL-DL FAN1 FAN3 GND +12V Rotation GND +12V Rotation PRL-DL 12-Volt Cooling Fan Power 7. Wake-On-Ring Connector (2-pin J1) This connector connects to internal modem cards with a Wake-OnRing output. The connector powers up the system when a ringup packet or signal is received through the internal modem card. For external modems, Wake-On-Ring is detected through the COM port. ® PRL-DL J1 PRL-DL Wake on Ring Header ASUS PRL-DL motherboard user guide 2-23