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English
B450M-HDV R4.0
ATX 12V Power
Connector
(4-pin ATX12V1)
(see p.1, No. 1)
This motherboard
provides a 4-pin ATX 12V
power connector.
Serial Port Header
(9-pin COM1)
(see p.1, No. 14)
This COM1 header
supports a serial port
module.
TPM Header
(17-pin TPMS1)
(see p.1, No. 15)
This connector supports
Trusted Platform Module
(TPM) system, which can
securely store keys, digital
certificates, passwords,
and data. A TPM system
also helps enhance
network security, protects
digital identities, and
ensures platform integrity.
CCTS#1
RRTS#1
DDSR#1
DDTR#1
RRXD1
GND
TTXD1
DDCD#1
1
RRI#1
1
G
N
D
S
M
B
_
D
A
T
A
_
M
A
IN
L
A
D
2
L
A
D
1
G
N
D
S
_
P
W
R
D
W
N
#
S
E
R
IR
Q
#
G
N
D
P
C
IC
L
K
P
C
IR
S
T
#
L
A
D
3
+
3
V
L
A
D
0
+
3
V
S
B
G
N
D
F
R
A
M
E
S
M
B
_
C
L
K
_
M
A
IN
