ASRock H470M-STX User Manual - Page 25
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MONO Speaker Header 1 (4-pin SPEAKER1) (see p.6, No. 6) Front_LFront_L+ Front_R+ Front_R- Please connect the chassis speaker to this header. Serial ATA3 Connectors (see p.7, No. 9 and 10) 1 20 PIN Signal Name PIN Signal Name 1 GND 11 2 LVDS_TX+ 12 3 LVDS_TX- 13 4 GND 14 5 GND 15 6 LVDS_RX- 16 7 LVDS_RX+ 17 8 GND 18 9 GND 19 10 GND 20 N/A 5V 5V 5V 5V 5V N/A GND GND GND These two SATA3 connectors support SATA data cables for internal storage devices with up to 6.0 Gb/s data transfer rate. *The SATA3 connectors support 2.5-inch hard drive (+5V) and do not support 3.5-inch hard drive (+12V) USB 2.0 Header (9-pin USB_8_9) (see p.6, No. 5) USB_PWR P- P+ GND 1 DUMMY GND P+ PUSB_PWR There is one header on this motherboard. This USB 2.0 header can support two ports. CPU Fan Connectors (4-pin CPU_FAN1) (see p.6, No. 1) FAN_SPEED_CONTROL CPU_FAN_SPEED FAN_VOLTAGE GND 1 2 34 (4-pin CPU_FAN2) FAN_SPEED_CONTROL 4 (see p.6, No. 8) FAN_SPEED 3 FAN_VOLTAGE 2 GND 1 This motherboard provides two 4-Pin CPU fan (Quiet Fan) connectors. If you plan to connect a 3-Pin CPU fan, please connect it to Pin 1-3. 20 English