19
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
SM
B_
D
A
TA
_M
A
IN
LA
D
2
LA
D
1
G
N
D
S_
PW
RD
W
N
#
SE
RI
RQ
#
G
N
D
P
C
IC
LK
P
C
IR
ST
#
LA
D
3
+
3
V
LA
D
0
+
3V
S
B
G
N
D
FR
A
M
E
SM
B_
C
LK
_M
A
IN
