ECS PF4 Extreme User Manual page 17

19. AUDIO1 (Front Panel Audio Header, 10-1 pin)
This is an interface for the Intel front panel audio cable that allows
convenient connection and control of audio devices.
Notes: If your front panel cable is seperated, please connect it to pin1 and pin3 or pin5
and pin7 to activate the MIC function.
1-12
20. SATA 5/6 (Serial ATA RAID Connectors, 7 pin, Orange)
These Serial ATA connectors support SATA hard disks that you may
configure as a RAID set. Through the onboard SiS180 RAID controller
you may create a RAID 0, RAID 1, RAID 0+1, or multiRAID configu-
ration together with the RAID ATA133 connector.
21. NBFAN1 (Northbridge Fan Connector, 3 pin)
If you installed wrong direction, the chip fan will not work. Sometimes
will damage the chip fan.