ASRock 890GX Extreme4 User Manual - Page 36
Please connect an ATX 12V
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ATX 12V Power Connector 8 5 (8-pin ATX12V1) (see p.12 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. 8 5 IEEE 1394 Header (9-pin FRONT_1394) (see p.12 No. 22) Serial port Header (9-pin COM1) (see p.12 No.32) 4-Pin ATX 12V Power Supply Installation 4 1 RXTPAM_0 GND RXTPBM_0 +12V GND 1 +12V RXTPBP_0 GND RXTPAP_0 RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 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. This COM1 header supports a serial port module. HDMI_SPDIF Header (2-pin HDMI_SPDIF1) (see p.12 No. 34) 1 GND SPDIFOUT Front USB 3.0 Panel 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. This front USB 3.0 panel can support 2 additional USB 3.0 ports besides the I/O panel. Please connect the light blue connector on the cable of this front USB 3.0 panel to the USB 3.0 header (USB3_2_3) and fasten the front USB 3.0 panel to the chassis with the bundled six screws. 36