22
Internal COM Port Headers:
COM3 (RS232/422/485)
COM1, 2, 4, 5, 6 (RS232)
(10-pin COM1~6: see p.8, No. 14)
LPC Header
This connector supports a
(19-pin LPC1)
Trusted Platform Module (TPM)
(
see p.8, No. 2)
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.
SPDIF Header
(3-pin SPDIF1: see p.8, No. 24)
1
2
PIN
Signal
Name
PIN Signal
Name PIN
Signal
Name PIN
Signal
Name
PIN
Signal
Name
10
N/A
8 CCTS#
6 DDSR#
4
DDTR#
2
RRXD
9
PWR
7 RRTS#
5
GND
3
TTXD
1
DDCD#
1
G
N
D
G
N
D
S
_
P
W
R
D
W
N
#
L
A
D
2
S
M
B
_
C
L
K
_
M
A
IN
P
C
IC
L
K
P
C
IR
S
T
#
L
A
D
3
+
3
V
L
A
D
0
F
_
C
L
K
R
U
N
#
F
R
A
M
E
S
M
B
_
D
A
T
A
_
M
A
IN
L
A
D
1
S
E
R
IR
Q
#
G
N
D
+
3
V
S
B
4
8
M
H
z
+
5
V
PIN Signal
Name PIN
Signal
Name PIN
Signal Name
PIN
Signal Name
8
GND
6
GND
4
USB2_PWR6_7
2 USB2_PWR6_7
7
MSCLK
5 MSDATA 3
KBDATA
1
KBCLK
PS2 Keyboard/Mouse Header
(8-pin PS2_KB_MS1: see p.8, No. 30)
+5V
* This motherboard supports RS232/422/485 on COM3 port. Please refer to below table for the pin definition. In
addition, COM3 port (RS232/422/485) can be adjusted in BIOS setup utility > Advanced Screen > Super IO
Configuration. You may refer to page 30 for details.
PIN
RS232
RS422
RS485
1
DCD
TX-
RTX-
2
RXD
RX+
N/A
3
TXD
TX+
RTX+
4
DTR
RX-
N/A
5
GND
GND
GND
6
DSR
N/A
N/A
7
RTS
N/A
N/A
8
CTS
N/A
N/A
9
PWR
PWR
PWR
10
N/A
N/A
N/A
COM3 Port Pin Definition