ASRock 990FX Extreme9 manual ATX Power Connector, ATX 12V Power Connector

(3-pin CPU_FAN2)	GND
(see p.14 No. 5)	+12V
	CPU_FAN_SPEED

ATX Power Connector	12	24
(24-pin ATXPWR1)
(see p.14 No. 10)
	1	13

Please connect an ATX power supply to this connector.

Though this motherboard provides 24-pin ATX power connector,	12		24
it can still work if you adopt a traditional 20-pin ATX power supply.
To use the 20-pin ATX power supply, please plug your
power supply along with Pin 1 and Pin 13.
20-Pin ATX Power Supply Installation	1	13

ATX 12V Power Connector	8	5
(8-pin ATX12V1)
(see p.14 No. 1)	4	1

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 4 1

IEEE 1394 Header	RXTPAM_0
(9-pin FRONT_1394)	GND
	RXTPBM_0
	+12V
(see p.14 No. 33)	GND
	1
	+12V
	RXTPBP_0
	GND
	RXTPAP_0

Besides one default IEEE 1394 port on the I/O panel, there is one IEEE 1394 header (FRONT_1394) on this motherboard. This IEEE 1394 header can support one IEEE 1394 port.

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