24 : Chassis Intrusion Header 1
25 : Chassis Intrusion Header 2
26 : Front Panel Audio Header
27 : Audio Jacks
Blue - Line In
Green - Line Out
Pink - Mic In
28 : Clear CMOS Header
1-2: Normal
2-3: Clear CMOS
29 : Top : RJ45 LAN Port
Bottom : USB2.0 (USB4_5)
30 : 4-Pin Chassis FAN Connector (+12V)
31 : Top : USB2.0 (USB2_3)
Bottom : HDMI
A
T
X
P
W
R
1
Intel
H81
D
D
R
3
_
A
1
(6
4
b
it
,
2
4
0
-p
in
m
o
d
u
le
)
D
D
R
3
_
B
1
(6
4
b
it
,
2
4
0
-p
in
m
o
d
u
le
)
PCI1
PCI2
PCIE1
PCIE2
1
HD_AUDIO1
COM6
1
COM5
1
COM3
1
COM4
1
CMOS
Battery
HDLED RESET
PLED PWRBTN
PANEL1
1
Super
I/O
SATA_5
SATA_1
SATA_2
SATA_6
CLRCMOS1
1
CHA_FAN2
64Mb
BIOS
CPU_FAN1
CPU_FAN2
24.4cm (9.6 in)
2
4
.4
c
m
(9
.6
in
)
USB8_9
1
1
CI2
1
CI1
1
LPT1
USB 3.0
T: USB0
B: USB1
Top:
RJ-45
USB 2.0
T: USB4
B: USB5
USB 2.0
T: USB2
B: USB3
H
D
M
I
BUZZ1
T
o
p
:
L
in
e
In
C
e
n
te
r:
L
in
e
O
u
t
B
o
tt
o
m
:
M
ic
In
1
JGPIO1
C
O
M
2
V
G
A
1
2
3
4
5
6
7
9
10
11
8
12
13
14
16
15
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
IMB-385
C
O
M
1
P
S
2
K
e
y
b
o
a
rd
/M
o
u
s
e
D
IS
P
L
A
Y
1
ATX12V1
P
W
R
_
J
P
1
1
USB10_11
1
AUDIO
CODEC
CHA_FAN1
TPM1
1
1
1
PWR_LOSS1
J
G
P
IO
_
P
W
R
1
1
J
G
P
IO
_
S
E
T
1
1
34
35
32 : 3-Pin Chassis FAN Connector (+12V)
33 : USB3.0 (USB0_1)
34 : Top : COM2*
Bottom : VGA1
35 : Top : COM1*
Bottom left: Display1
Bottom right: PS/2 Keyboard/Mouse
(Y Cable)
GND
+12V
FAN_SPEED
* This motherboard supports RS232/422/485 on COM1, 2 ports.
Please refer to below table for the pin definition. In addition, COM1, 2
ports (RS232/422/485) can be adjusted in BIOS setup utility >
Advanced Screen > Super IO Configuration. You may refer to page
30 of our user manual for details.
COM1, 2 Port Pin Definition
PIN
RS232
RS422
RS485
1
DCD, Data Carrier Detect
TX-
RTX-
2
RXD, Receive Data
RX+
N/A
3
TXD, Transmit Data
TX+
RTX+
4
DTR, Data Terminal Ready
RX-
N/A
5
GND
GND
GND
6
DSR, Data Set Ready
N/A
N/A
7
RTS, Request To Send
N/A
N/A
8
CTS, Clear To Send
N/A
N/A
9
No Power/5V/12V
N/A
N/A
