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The mainboard supports SSI power supply for the power system. Before inserting
the power supply connector, always make sure that all components are installed
properly to ensure that no damage will be caused.
SSI 24-Pin System Power Connector: ATX1
This connector allows you to connect an SSI power supply. To
connect the SSI power supply, make sure the plug of the power
supply is inserted in the proper orientation and the pins are aligned.
Then push down the power supply firmly into the connector.
You may use the 20-pin ATX power supply or 24-pin SSI power
supply as you like. If you'd like to use the ATX power supply,
please plug your power supply along with pin 1 & pin 13 (refer to
the image at the right hand). There is also a foolproof design on pin 11, 12, 23 & 24 to
avoid wrong installation.
SSI 4-Pin CPU Power Connector: JPW2
The connector provides 12V power output to the CPU.
ATX1
13
24
MSI Reminds You...
1. Maker sure that these two connectors are connected to adequate SSI
power supplies to ensure stable operation of the mainboard.
2. Power supply of 350watts (and above) is highly recommended for
system stability.
3. SSI 12V power connection should be greater than 18A.
Power Supply
ATX1 Pin Definition
1
PIN
SIGNAL
1
+3.3V
2
+3.3V
3
GND
4
+5V
5
GND
6
+5V
7
GND
8
PWR OK
9
5VSB
10
+12V
11
+12V
12
12
NC
System Hardware
pin 13
JPW2
PIN
SIGNAL
13
+3.3V
14
-12V
15
GND
16
PS-ON#
17
GND
18
GND
19
GND
20
Res
21
+5V
22
+5V
23
+5V
24
GND
pin 12
2-5
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