1230B0002001
Connectors and System Configuration Jumper
3-1
3
3
C
C
o
o
n
n
n
n
e
e
c
c
t
t
o
o
r
r
s
s
a
a
n
n
d
d
S
S
y
y
s
s
t
t
e
e
m
m
C
C
o
o
n
n
f
f
i
i
g
g
u
u
r
r
a
a
t
t
i
i
o
o
n
n
J
J
u
u
m
m
p
p
e
e
r
r
The locations of all the connectors described in this chapter are shown in “1.3.1 Connector and
Component Locations”.
3
3
.
.
1
1
P
P
o
o
w
w
e
e
r
r
C
C
o
o
n
n
n
n
e
e
c
c
t
t
o
o
r
r
s
s
(
(
J
J
1
1
0
0
,
,
J
J
1
1
1
1
)
)
The main power supply connection is obtained using the 24-pin connector (only the first 20 pins are
populated when using an ATX12V power supply).
12V processor power is obtained using the 8-pin connector (only the first 4 pins are populated when
using an ATX12V power supply).
3.1.1 Main Power Connector (J11)
The main power connector and the pin definition are shown as below:
Figure 3-1 Main Power Connector
Signal Name
Pin
Pin
Signal Name
+3.3V 13
1
+3.3V
-12V 14
2
+3.3V
Ground 15
3
Ground
DC_ON (Soft On/Off)
16
4
+5V
Ground 17
5
Ground
Ground 18
6
+5V
Ground 19
7
Ground
Key 20
8
Power
Good
+5V
21
9
Stand By +5V
+5V 22
10
+12V
+5V 23
11
+12V
Ground 24
12
+3.3V
Table 3-1 Main Power Connector Pin Definition
