2-22
X7DWU User's Manual
JWD
JPL1
JPG1
JP2
JL1
FAN7
FAN6
FAN2
FAN1
J29
J30
SW1
LE2
JWOL1
USB4
JBT1
JWOR
USB2/3
BIOS
LE1
JD1
Front Panel CTRL
CPU2
JPW2
4-Pin PWR
8-Pin PWR JPW3
JPW1
JOH1
Fan4
FAN5
CPU1
Intel 5400
South Bridge
S I/O
VGA CTRL
T-SGPIO1
T-SGPIO2
North Bridge
Intel 5400
FAN2
JI2C1
SIMSO
SXB1:PCI-Exp.x16 (Signal)
UIOP
Battery
COM2
CPU FAN1
KB/MS
SMBUS_PS
BANK4
COM1
USB0/1
BANK3
BANK2
LAN1
VGA
BANK1
DIMM4B
DIMM4A
DIMM3A
DIMM3B
DIMM1B
DIMM2A
DIMM2B
DIMM1A
LAN2
CPU
IDE#1
Floppy
KEYLOCK
SMB
I-SATA5
LAN CTRL
20-Pin PWR
I-SATA4
I-SATA3
I-SATA2
I-SATA1
I-SATA0
JI2C2
FAN8
FAN3
Buzzer
PCI-Exp.x8 (Signal)
PCI-Exp.x8 (Signal)
X7DWU
A
A. UID Switch
B. SGPIO1
C. SGPIO2
B
C
T-SGPIO Headers
Two SGPIO (Serial-Link General Purpose
Input/Output) headers are located at J29
and J30 on the motherboard. These headers
support serial link interfaces for the onboard
SATA and SAS connectors. See the table
on the right for pin defi nitions. Refer to the
board layout below for the location.
T-SGPIO
Pin Defi nitions
Pin# Defi nition
Pin Defi nition
1
NC
2
NC
3
Ground
4
Data
5
Load
6
Ground
7
NC
8
NC
Note:
NC= No Connections
Unit Identifi cation Switches
There are two Unit Identification (UID)
Switches on the motherboard. The Front
Panel UID Switch is connected to Pin 13
of the Front Control Panel (JF1). The Rear
UID Switch (SW1) is located next to LAN
Port 2. When you push the UID Switch on
the Front Control Panel, both Rear UID and
Front Panel UID Indicators will be on. Push
the FP UID Switch (or the Rear UID Switch-
SW1) again to turn off both Indicators. These
UID Indicators provide easy identifi cation of
a system unit that may be in need of ser-
vice. (For more information on the FP UID
Switch, please refer to FP UID Switch on
Page 2-11.)
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