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Chapter 2: Installation
2-21
J
W
O
R1
COM
2
J
7
JBT1
J
W
O
L1
JPL1
J
PL2
J
30
J
L1
J
OH1
J
D
1
F
an
2
LE
1
J
F
1
F
P
CT
RL
JPW1
J
17
LE2
SW1
J11
I2C1
I2C2
J
PG1
Rear UID
E
S
10
0
0
V
id
e
o
CT
RL
Inte
l
E
S
B
2
(S
outh B
ridge
)
US
B4
J
W
D
J
K1
US
B2/3
J
18
S
MB
C
P
U1
J
PW
3
COM1
VGA
LAN1
LAN2
J
28
S
XB2:
PCI-E
x8
S
X
B1:
PCI-E
x16
PCI-X
133 M
Hz
(
Nor
t
h Br
idge)
Vid
e
o
M
e
m
o
r
y
X7DBU
J
29
F
an
4
F
an
8
CPU
F
A
N2
Fan3
F
an
1
20
-P
in
M
a
in
PW
R
J
PW
2
4-Pin
PW
R
8-Pin
PW
R
F
an
7
CPU
F
an
1
PW
R
S
M
B
Fa
n
5
F
a
n
6
Bu
zz
e
r
S
P1
J9B2
J9B1
J8B3
J8B2
J8B1
J7B3
J7B2
J7B1
D
IMM
4B
S
GPIO
1
S
GPIO2
J
27
UI
O
PW
R
LA
N
C
T
RL
J
LA
N2
J
LA
N
1
J
15
JCOM
1
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-SA
T
A
4
I-
S
A
T
A
5
B
IO
S
J22
F
lo
p
p
y
S
IM
S
O
ID
E
#
1
C
P
U2
J
P1
D
IM
M
1A
D
IMM
1B
D
IMM
2A
D
IMM
2B
D
IMM
3A
D
IMM
3
B
D
IMM
4A
Batt
e
r
y
Bank2
Bank3
Bank4
KB/MS
USB 0/1
J
5
J14
S
I/O
I
ntel 500
0
J
9
Power SMB (I
2
C) Connector
Power SMB (I
2
C) Connector (J17)
monitors onboard power supply, fan
speeds and system temperatures.
See the table on the right for pin
de nitions.
PWR SMB
Pin De nitions
Pin# De nition
1 Clock
2 Data
3 PWR Fail
4 Ground
5 +3.3V
A
B
A. PWR SMB
B. VGA
VGA Connector
A VGA connector (J15) is located next
to the GLAN2 port on the IO backplane.
Refer to the board layout below for
the location.