2-20
X7DBU/X7DGU User's Manual
JWOR1
COM2
J7
JBT1
JWOL1
JPL1
JPL2
J30
JL1
JOH1
JD
1
Fan2
LE1
JF1
F
P
CT
RL
JPW
1
J17
LE2
SW1
J11
I2C1
I2C2
JPG1
Rear UID
ES1000
Video CTRL
Intel ESB2
(South Bridge)
USB4
JWD
JK1
USB2/3
J18
SMB
CPU1
JPW
3
COM1
VGA
LAN1
LAN2
J28
SXB2: PCI-E x8
SXB1: PCI-E x16
PCI-X 133 MHz
(North Bridge)
Vid
e
o
M
e
m
o
ry
X7DBU
J29
Fan4
Fan8
CPU FAN2
Fan3
Fan1
20-Pin Main PWR
JPW
2
4-Pin PWR 8-Pin PWR
Fan7
CPU Fan1
PWR SMB
Fan5
Fan6
Buzzer
SP1
J9B2
J9B1
J8B3
J8B2
J8B1
J7B3
J7B2
J7B1
DIMM4B
SGPIO1
SGPIO2
J27
UIO PWR
LAN
CTRL
JLAN2
JLAN1
J15
JCOM1
JKM1
Bank1
I-S
A
T
A
0
I-S
A
T
A
1
I-S
A
T
A
2
I-
S
A
T
A
3
I-S
A
T
A
4
I-
S
A
T
A
5
B
IO
S
J22
Flo
p
p
y
S
IM
S
O
ID
E
#
1
CPU2
JP1
DIMM1A
DIMM1B
DIMM2A
DIMM2B
DIMM3A
DIMM3B
DIMM4A
Battery
Bank2
Bank3
Bank4
KB/MS
USB 0/1
J5
J14
S
I/O
Intel 5000
J9
SMB
A System Management Bus header is
located at J18. Connect the appropri-
ate cable here to utilize SMB on your
system.
Overheat LED/Fan Fail
(JOH1)
The JOH1 header is used to connect
an LED to provide warnings of chas-
sis overheating. This LED will blink
to indicate a fan failure. Refer to the
table on right for pin defi nitions.
SMB Header
Pin De
fi
nitions
Pin# Defi nition
1
Data
2
Ground
3
Clock
4
No Connection
Overheat LED
Pin De
fi
nitions
Pin# Defi nition
1
5vDC
2
OH Active
OH/Fan Fail LED
Pin De
fi
nitions
State Message
Solid
Overheat
Blinking
Fan Fail
A
B
A. OH/Fan Fail LED
B. SMB Header
