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B850M Steel Legend WiFi
1.3 Motherboard Layout
4
5
1
2
3
CPU_FAN1
ATX12V2
ATX12V1
6
ADDR_LED3
1
7
1
HDMI1
DP_1
BIOS
_FB1
USB 3.2 Gen2
T: USB32_1
B: USB32_TC1
8
USB 2.0
USB_4
USB 2.0
USB_2
USB 2.0
USB_3
USB 2.0
USB_1
ATXPWR1
DDR5_A1 (64 bit, 288-pin module)
DDR5_B2 (64 bit, 288-pin module)
DDR5_B1 (64 bit, 288-pin module)
DDR5_A2 (64 bit, 288-pin module)
CMOS
Battery
Top:
RJ-45
USB 3.2 Gen1
T: USB32_2
B: USB32_3
9
USB32_TC2
M2_WIFI_2
10
USB32_4_5
M2_1
Center:
FRONT
Top:
LINE IN
Bottom:
MIC IN
11
1
CPU_FAN2
29
12
PCIE1
SPI_TPM_J1
13
1
LAN
AMD
B850
BIOS
ROM
14
SATA3_4
SATA3_3
M2_2
PCIE2
RoHS
RGB_LED1
SATA3_1
SATA3_2
M2_3
AUDIO
CODEC
USB_7_8
SPK_PLED1
HD_AUDIO1
PLED PWRBTN
1
TB1
CHA_FAN2
CHA_FAN3
USB_5_6
CHA_FAN1
VGA
CPU
DRAM
BOOT
T_SENSOR1
ADDR_LED1
ADDR_LED2
USB32_6_7
CLRCMOS1
1
1
15
HDLED RESET
1
1
1
1
1
1
1
1
PANEL1
23
22
27
25
28
21
24
26
19
18
17
16
20
English
7