ASRock 990FX Extreme3 manual ATX 12V Power Connector

ATX 12V Power Connector	5	1
(8-pin ATX12V1)	8	4
(see p.2 No. 2)

Please connect an ATX 12V power supply to this connector.

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 8 4

Serial port Header	This COM1 header supports a
(9-pin COM1)	serial port module.
(see p.2 No.26)

HDMI_SPDIF Header	HDMI_SPDIF header, providing
(2-pin HDMI_SPDIF1)	SPDIF audio output to HDMI
(see p.2 No. 1)	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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ASRock 990FX Extreme3 Motherboard