Asus P4P8X SE P4P8X SE user's manual English version E1479 - Page 36
By default, the pins labeled Chassis Signal and Ground are shorted
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7. Front panel audio connector (10-1 pin FP_AUDIO) This is an interface for the Intel front panel audio cable that allow convenient connection and control of audio devices. By default, the pins labeled LINE OUT_R/BLINE_OUT_R and the pins LINE OUT_L/BLINE_OUT_L are shorted with jumper caps. Remove the caps only when you are connecting the front panel audio cable. AGND +5VA BLINE_OUT_R BLINE_OUT_L MIC2 MICPWR Line out_R NC Line out_L ® P4P8X SE FP_AUDIO P4P8X SE Front Panel Audio Connector 8. Chassis intrusion connector (4-1 pin CHASSIS1) This lead is for a chassis designed with intrusion detection feature. This requires an external detection mechanism such as a chassis intrusion sensor or microswitch. When you remove any chassis component, the sensor triggers and sends a high-level signal to this lead to record a chassis intrusion event. By default, the pins labeled "Chassis Signal" and "Ground" are shorted with a jumper cap. If you wish to use the chassis intrusion detection feature, remove the jumper cap from the pins. CHASSIS1 +5VSB_MB Chassis Signal GND ® P4P8X SE P4P8X SE Chassis Alarm Lead (Default) 1-26 Chapter 1: Product introduction