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X7DWE User's Manual
SMB
A System Management Bus header is
located at J18. Connect the appropri-
ate cable here to utilize SMB on your
system.
Power SMB (I
2
C) Connector
Power SMB (I
C) Connector (J17)
2
monitors power supply, fan and sys-
tem temperatures. See the table on
the right for pin defi nitions.
B
PWR
24-Pin ATX PWR
8-Pin PWR
DIMM2B
DIMM2A
DIMM1B
DIMM1A
Intel 5400
North Bridge
FAN5
JP2
FAN6
Slot7 SIMLP
VGA
Slot6 PCI-E x8
CTRL
Slot5 PCI-E x8
Slot4 PCI-E x8
JPG1
JWD
Slot3 PCI-E x8
LAN
CTRL
JPL1
Slot 2 PCI-E x4
JI2C3
JI2C1
JPL2
JI2C4
JI2C2
A
Slot1 PCI-X 133MHz
LE1
J18
Slot 0 PCI-U
SMB
LED5
CPU1
CPU2
FAN2
FAN3
T-SGPIO1
T-SGPIO2
Intel ESB2
South Bridge
USB4/5
J7
USB2/3
JP1
JBT
USB6
BIOS
I-SATA5
I-SATA3
I-SATA1
SPKR
JWOL1
JPT1
I-SATA4
I-SATA2
I-SATA0
JL1
J8
JD1
FAN4
2-20
SMB Header
Pin Defi nitions
Pin#
Defi nition
1
Data
2
Ground
3
Clock
4
No Connection
PWR SMB
Pin Defi nitions
Pin#
Defi nition
1
Clock
2
Data
3
PWR Fail
4
Ground
5
+3.3V
A. SMB
B. PWR SMB
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