User's Manual

ASUS PRIME X399-A
1-3
Chapter 1
Layout contents
Connectors/Jumpers/Buttons and switches/Slots
Page
1. DDR4DIMMslots 1-5
2. SocketTR4CPUsocket 1-4
3. RGBheader(4-pinRGB_HEADER1-2) 1-25
4. ATXpowerconnectors(24-pinEATXPWR;8-pinEATX12V_1;4-pin
EATX12V_2)
1-22
5. CPU,CPUoptional,cover,AIOpump,waterpump+,extension,M.2,
andchassisfanconnectors(4-pinCPU_FAN;4-pinCPU_OPT;3-pin
COV_FAN;4-pinAIO_PUMP;4-pinW_PUMP+;4-pinM.2_FAN;5-pin
EXT_FAN;4-pinCHA_FAN1-3)
1-21
6. M.2sockets[M.2_1(Socket3);M.2_2(Socket3)] 1-24
7. USB3.1Gen2frontpanelconnector(U31G2_C1) 1-18
8. USB3.1Gen1connectors(20-1pinU31G1_910;U31G1_1112) 1-19
9. 3DMountholes 1-10
10. U.2connector(U.2) 1-24
11. AMDSerialATA6.0Gb/sconnectors(7-pinSATA6G_1-6) 1-17
12. Systempanelconnector(20-5pinPANEL) 1-23
13. ClearRTCRAMjumper(2-pinCLRTC) 1-9
14. Thermalsensorconnector(2-pinT_SENSOR) 1-20
15. USB2.0connectors(10-1pinUSB12;USB34) 1-20
16. Power-onbutton 1-10
17. Q-CodeLED 1-11
18. Frontpanelaudioconnector(10-1pinAAFP) 1-18