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1.4 Motherboard Layout
1
30
LAN2
LAN1
(B550D4U only)
(B550D4U only)
HDMI1
LAN3
LAN4
(B550D4U-2T only)
(B550D4U-2T only)
UID1
ASPEED
2500
PCIE4
BMC
IPMB1
ROM
1
29
1
2
BAT1
DDR4_B1 (64 bit, 288-pin module)
DDR4_B2 (64 bit, 288-pin module)
DDR4_A1 (64 bit, 288-pin module)
DDR4_A2 (64 bit, 288-pin module)
ATX12V1
AM4 PGA 1331
X710-AT2
(B550D4U-2T only)
PCIE6
B550D4U-2T/
B550D4U
Super
CLRCMOS1
T 1
R
1
BMC_SMB_1
BUZZER1
SPEAKER1
1
1
28
27
26
25
3
24.4cm (9.6 in)
1
PSU_SMB1
Socket
BIOS
ROM
I/O
FAN6
Dr.
TPM1
Debug
1
24
23
B550D4U-2T / B550D4U
4
ATXPWR1
FAN3
FAN4
NUT110_2
NUT110_1
NUT80_2
NUT80_1
NUT60_2
NUT60_1
NUT42_2
NUT42_1
1
(B550D4U only)
M2_2
SATA_0
(Red)
M2_1
SATAPWR1
USB3_3_4
AMD
B550
PANEL1
SATA5
AUX_PANEL1
PLED PWRBTN
1
1
HDLED RESET
22
21
20
5
FAN1
6
FAN2
7
8
9
10
11
12
13
14
15
16
17
18
FAN5
19
7
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