ASRock Fatal1ty 990FX Professional manual USB 3.0 Header Besides two default USB

(9-pin USB8_9)

(see p.14 No. 25)

USB 3.0 Header	Besides two default USB 3.0
(19-pin USB3_1_2)	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_3_4)

(see p.14 No. 13)

Infrared Module Header	This header supports an
(5-pin IR1)	optional wireless transmitting
(see p.14 No. 31)	and receiving infrared module.
Front Panel Audio Header	This is an interface for the front
(9-pin HD_AUDIO1)	panel audio cable that allows
(see p.14 No. 34)	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

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