ASRock 990FX Extreme3 User Manual - Page 34
Please connect an ATX 12V
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ATX 12V Power Connector 5 1 (8-pin ATX12V1) (see p.12 No. 2) 8 4 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. 5 1 Serial port Header (9-pin COM1) (see p.12 No.26) HDMI_SPDIF Header (2-pin HDMI_SPDIF1) (see p.12 No. 1) 4-Pin ATX 12V Power Supply Installation 8 4 RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 This COM1 header supports a serial port module. HDMI_SPDIF header, providing SPDIF audio output to HDMI 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. 34
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