ASROCK X399M Taichi, Manual, Page: 5 / 198

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2
No. Description
1 Chassis Fan / Waterpump Fan Connector (CHA_FAN3/W_PUMP)
2 4 pin 12V Power Connector (ATX12V2)
3 2 x 288-pin DDR4 DIMM Slots (DDR4_D1, DDR4_C1)
4 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
5 CPU Xtreme OC Switch (MOS_PROCHOT1)
6 8 pin 12V Power Connector (ATX12V1)
7 CPU Fan Connector (CPU_FAN1)
8 CPU Fan / Waterpump Fan Connector (CPU_OPT/W_PUMP)
9 Power Button (PWRBTN1)
10 Reset Button (RSTBTN1)
11 ATX Power Connector (ATXPWR1)
12 U.2 Connector (U2_1)
13 USB 2.0 Header (USB_3_4)
14 USB 3.1 Gen1 Header (USB3_11_12)
15 USB 2.0 Header (USB_1_2)
16 SATA3 Connectors (SATA3_7_8)
17 SATA3 Connectors (SATA3_5_6)
18 SATA3 Connectors (SATA3_3_4)
19 SATA3 Connectors (SATA3_1_2)
20 System Panel Header (PANEL1)
21 USB 3.1 Gen1 Header (USB3_9_10)
22 Power LED and Speaker Header (SPK_PLED1)
23 Chassis Fan Connector (CHA_FAN2)
24 Clear CMOS Button (CLRCBTN1)
25 TPM Header (TPMS1)
26 RGB LED Header (RGB_LED1)
27 Right Angle Front Panel Audio Header (HD_AUDIO_RA1)
28 Front Panel Audio Header (HD_AUDIO1)
29 Chassis Fan Connector (CHA_FAN1)