46
H11SSW-iN/NT User's Manual
Main Power Supply Connector (JPWR2)
The primary power supply connector (JPWR2) is an ATX power connector that the power
supply plugs into directly.
ATX Power 24-pin Connector
Pin Definitions
Pin# Definition Pin # Definition
13
+3.3V
1
+3.3V
14
-12V
2
+3.3V
15
Ground
3
Ground
16
PS_ON
4
+5V
17
Ground
5
Ground
18
Ground
6
+5V
19
Ground
7
Ground
20
Res (NC)
8
PWR_OK
21
+5V
9
5VSB
22
+5V
10
+12V
23
+5V
11
+12V
24
Ground
12
+3.3V
12V 8-pin Auxilliary Power Connector (JPWR1)
JPWR1 is an 8-pin ATX power input to provide auxiliary power to the processor. Refer to the
table below for pin definitions.
12V 8-pin Power Connector
Pin Definitions
Pins Definition
1 through 4
Ground
5 through 8
+12V
Power SMB Header (PWRI2C)
Power System Management Bus (I2C) header monitors power supply, fan and system
temperatures. See the table below for pin definitions.
Power SMB Header
Pin Definitions
Pin#
Definition
1
Clock
2
Data
3
PWR Fail
4
Ground
5
+3.3V