Filter
Top Products
Chapter 2: Installation
2-9
Serial Ports
Two COM connections (COM1, COM2)
are located on the motherboard. COM1
is located on the back I/O panel. COM2
is located just behind the back panel
connectors to provide additional on-
board serial connection support. See
the table on the right for pin deni-
tions.
Note: Additional COM3 and COM4
headers are available on the X7S-
PA-L motherboard only.
Serial Ports-COM1/COM2/COM3/COM4
PinDenitions
Pin # Denition Pin # Denition
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 Ground 10 N/A
(Backpanel) COM1
COM2
COM3 (X7SPA-L Only)
COM4 (X7SPA-L Only)
1
1
2
MH2
MH3MH4
D17
JPW1
JUSB1
JD1
JPC3
JPUSB1
JWD1
JPG1
JBMC1
JPL1
JPT1
JPL2
JDIMM2
1
JDIMM1
JI2C2
JI2C1
JOH1
JL1
JL2
SP1
+
J2
J3
JBT1
JBAT1
JPCIE1
JUSB5
JUSB4
JUSB3
JUSB2
JLPC80
R1050
JSMB1
FAN1 FAN2
JCOM2
JCOM4
JPI2C1
JWF1
J8
JVGA1
CD1
JPB
FAN
FAN
COMS CLEAR
2-3 DISABLE
1-2 ENABLE
JPB:BMC ENABLE/DISABLE
CD-in
JPT1:TPM ENABLE/DISABLE
1-2 ENABLE
2-3 DISABLE
AUDIO FP
T-SGPIO2
T-SGPIO1
JPI2C:PWR I2C
JSMB1:SMBus1
JPUSB1:USB WAKE UP
2-3 DISABLE
1-2 ENABLE
JWF1:DOM PWR
JD1:1-3 PWR LED
4-7 SPEAKER
ON:ENABLEJI2C2
OFF:DISABLE
JI2C1
OFF:DISABLE
ON:ENABLE
JL2:AUDIO FRONT PANEL SELECT
ON:AC'97 FRONT PANEL
OFF:HD AUDIO FRONT PANEL
JPG1:VGA
2-3 DISABLE
1-2 ENABLE
2-3 DISABLE
JPL2:1-2 ENABLE
JPL1:1-2 ENABLE
2-3 DISABLE
JL1:CHASISS INTRUSION
JF1 PWR ON RST X OH/FF NIC2 NIC1 HDD LED PWR LED X NMI
2-3 NMI
JWD1:1-2 RST
JBT1:
LAN2
LAN1
I-SATA5
I-SATA2
I-SATA4
I-SATA1
I-SATA3
I-SATA0
SLOT1 PCI-E X4 (IN X16 SLOT)
SYS
CPU
KB/MOUSE
COM4
COM3
COM2
COM1
SODIMM2
SODIMM1
CPU
J6
J5
J10
J11
J12
J13
J14
JPF
Back Panel Connectors
4
3
2
4
3
X7SPA-L Only
LAN2 is not
available on the
X7SPA-L