Motherboard Layout - ASROCK B450 Pro4 User Manual

1.3 Motherboard Layout

USB 3.1 Gen2
T: USB31_TA_1
B: USB31_TC_1
USB 3.1 Gen1
T: USB1
B: USB2
USB 3.1 Gen1
T: USB3
B: USB4
CHA_FAN1/WP
27
HD_AUDIO1
26
1
ATX12V1
BIOS
ROM
PCIE1
PCIE2
PCIE3
PCIE4
PCIE5
PCIE6
COM1
RGB_LED1
TPMS1
1
1
1
25 24 23
2
Ultra M.2
PCIe Gen3 x4
CMOS
Battery
Promontory
B450 Pro4
RoHS
CHA_FAN2/WP
USB_1_2 USB_3_4
ADDR_LED1
CLRCMOS2
1 1
1 1
22 21 20 19
B450 Pro4
4 5
3
1
AMD_FAN_LED1
CPU_FAN2/WP
CPU_FAN1
1
AMD
B450
SPK_PLED1
1
PANEL1
CHA_FAN3/WP
PLED PWRBTN
1
HDLED RESET
18 17 16 15
6
7
8
9
10
11
12
13
14
7