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X9DRW-3LN4F+/3TF+ Motherboard User's Manual
Serial Ports
Two COM connections (COM1 &
COM2) are located on the motherboard.
COM1 is located on the Backplane I/O
panel. COM2, located close to USB 4/5
Connectors, is used to provide front ac-
cess support. See the table on the right
for pin definitions.
1
Video Connection
One video (VGA) port (VGA1) is lo-
cated next to COM Port1 on the I/O
backplane. Refer to the board layout
below for the location.
LAN4
LAN3
JUIDB1
UID
SXB1B
JP7
JP6
1
LEM2
BMC
CTRL
BATTERY
CPLD
JBAT1
JBT1
Clock
Intel
CLOSE 1st
PCH
2
I-SATA5
I-SATA4
JSD1
I-SATA3
JTPM1
I-SATA2
JF2
FAN4
I-SATA1
FAN5
I-SATA0
T-SGPIO2
2
COM2
LAN2
LAN1
VGA1
COM1
KB/MOUSE
USB0/1
Buzzer
IPMI_LAN
SP1
LAN
CTRL 1
LAN
CTRL 2
X9DRW-3LN4F+
Rev. 1.20
CPU2
CLOSE 1st
OPEN 1st
CPU1
JPW2
OPEN 1st
FAN3 FAN2
Serial COM) Ports
Pin Definitions
Pin #
Definition
1
DCD
2
RXD
3
TXD
4
DTR
5
Ground
1. COM1
2. COM2
3. VGA1
1
2-20
Pin #
Definition
6
DSR
7
RTS
8
CTS
9
RI
10
N/A
3
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