ASRock 990FX Extreme9 manual USB 3.0 Headers Besides four default USB

(9-pin USB6_7)

(see p.14 No. 25)

USB 3.0 Headers	Besides four default USB 3.0
(19-pin USB3_4_5)	ports on the I/O panel, there are
(see p.14 No. 12)	two USB 3.0 headers on this
	motherboard. Each USB 3.0
	header can support two USB
	3.0 ports.
(19-pin USB3_6_7)
(see p.14 No. 11)

Infrared Module Header	This header supports an
(5-pin IR1)	optional wireless transmitting
(see p.14 No. 32)	and receiving infrared module.

Front Panel Audio Header		GND
(9-pin HD_AUDIO1)			PRESENCE#
				MIC_RET
(see p.14 No. 34)						OUT_RET
	1
						OUT2_L
					J_SENSE
				OUT2_R
			MIC2_R
		MIC2_L

This is an interface for the front panel audio cable that allows convenient connection and control of audio devices.

1.High Definition Audio supports Jack Sensing, but the panel wire on the chassis must support HDA to function correctly. Please follow the instruction in our manual and chassis manual to install your system.

2.If you use AC’97 audio panel, please install it to the front panel audio header as below:

A. Connect Mic_IN (MIC) to MIC2_L.

38