ASRock Fatal1ty X79 Professional manual Port on the I/O panel, there

Though this motherboard provides 8-pin ATX 12V power connector, it can still work if you adopt a traditional 4-pin ATX 12V power supply. To use the 4-pin ATX power supply, please plug your power supply along with Pin 1 and Pin 5.

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4-Pin ATX 12V Power Supply Installation

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SLI/XFIRE Power Connector

(4-pin SLI/XFIRE_PWR1)

(see p.14 No. 31)

SLI/XFIRE_POWER1

It is not necessary to use this connector, but please connect it with a hard disk power connecor when two graphics cards are plugged to this motherboard.

IEEE 1394 Header	Besides one default IEEE 1394
(9-pin FRONT_1394)	port on the I/O panel, there
(see p.14 No. 34)	is one IEEE 1394 header
	(FRONT_1394) on this
	motherboard. This IEEE 1394
	header can support one IEEE
	1394 port.
Serial port Header	This COM1 header supports a
(9-pin COM1)	serial port module.
(see p.14 No. 32)

HDMI_SPDIF Header	HDMI_SPDIF header, providing
(2-pin HDMI_SPDIF1)	SPDIF audio output to HDMI
(see p.14 No. 33)	VGA card, allows the system to
	connect HDMI Digital TV/
	projector/LCD devices. Please
	connect the HDMI_SPDIF
	connector of HDMI VGA card to
	this header.

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