
2-18
X7DCX User's Manual
JPW3
JSMB1
JUSB3
JUSB2
JUSB4
JUSB5
JBT1
JBAT1
JD1
SP1
JPG1
JPL2
JWD1
CPU1
JF1
CH0_DIMM2
CH0_DIMM0
CH1_DIMM0
CH1_DIMM2
CH1_DIMM1
CH0_DIMM1
JPW1
DP1
JI2C2JI2C1
JL1
Fan3
X7DCX
SIMSO
USB7
USB6
USB4/5
I-SA
T
A
5
I-SA
T
A
4
I-SA
T
A
3
I-SA
TA
1
I-SA
TA
2
I-SA
TA
0
CPU1 Fan
CPU2 Fan
Slo3 PCI-Ex8
Slot4 PCI-Ex8
SMBus1
Fan6
Fan1
Fan8
T-SGPIO2
JWOL
Fan7
Fan2
Floppy
IDE
Fan4
USB2/3
PWR I2C
KB/MS
USB0/1
COM1
VGA
LAN1
LAN2
Slot6 PCI-Ex8
Slot5 PCI-Ex8(in x16slot)
Slot7 PCI-Ex4(inx8 slot)
Slot1 PCI 33MHz
JWOR
COM2
Fan5
JPW2
T-SGPIO1
CPU2
BIOS
JPL1
Slo2 PCI-Ex8
LAN
CTRL
LAN
CTRL
DIMM1B
DIMM1A
DIMM2B
DIMM2A
DIMM3B
DIMM3A
Intel
North Bridge
Intel
South Bridge
VGA
CTRL
S I/O
PLX
PCI-Exp.
Switch
IDE
CTRL
I/O Connections
ATX PS/2 Keyboard and PS/2
Mouse Ports
The ATX PS/2 keyboard and the PS/2
mouse are located on the I/O back-
plane. See the table on the right for pin
defi nitions. (The mouse port is above
the keyboard port.) See the table on
the right for pin defi nitions.
PS/2 Keyboard and
Mouse Port Pin
Defi nitions
Pin# Defi nition
1
Data
2
NC
3
Ground
4
VCC
5
Clock
6
NC
Serial Ports
COM1 and COM2 are serial port con-
nections located on the motherboard.
COM1 is a connector located on the
I/O backplane. COM2 is a header lo-
cated below PCI Slot 1 to provide front
access. See the table on the right for
pin defi nitions.
Serial Port Pin Defi nitions
Pin # Defi nition
Pin # Defi nition
1
DCD
6
DSR
2
RXD
7
RTS
3
TXD
8
CTS
4
DTR
9
RI
5
Ground
10
NC
A
B
A. Keyboard/Mouse
B. COM1
C. COM2
Pin 10 (Key) is available on
COM2 only. NC: No Connec-
tion.
C
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