ASRock Fatal1ty X399 Professional Gaming User Manual - Page 35
Caution, Never install the RGB, LED cable in the wrong orienta, tion; otherwise, the cable may
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Fatal1ty X399 Professional Gaming Series ATX 12V Power Connector (4-pin ATX12V2) (see p.7, No. 2) Graphics 12V Power Connector (6-pin GFX_12V1) (see p.7, No. 18) 4 1 6 3 Serial Port Header (9-pin COM1) (see p.7, No. 29) RRXD1 DDTR#1 DDSR#1 CCTS#1 1 RRI#1 RRTS#1 GND TTXD1 DDCD#1 RGB LED Headers (4-pin RGB_LED1) (see p.7, No. 28) (4-pin RGB_LED2) (see p.7, No. 12) 1 12V G R B B R G 12V 1 Please connect an ATX 12V power supply to this connector. *The power supply plug fits into this connector in only one orientation. This motherboard provides a 6-pin Graphics 12V power connector. * Install the PSU's power cable to this connector when 4 graphics cards are installed. This COM1 header supports a serial port module. These two RGB headers are used to connect RGB LED extension cable which allows users to choose from various LED lighting effects. Caution: Never install the RGB LED cable in the wrong orientation; otherwise, the cable may be damaged. *Please refer to page 64 for further instructions on these two headers. English 27