2-7
Chapter 2 - Mainboard Hardware
2.4 Power Supply
The mainboard supports ATX 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.
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
SIGNAL
1
+3.3V
2
+3.3V
3
GND
4
+5V
5
GND
6
+5V
7
GND
8
PW R OK
9
5VSB
10
+12V
11
+12V
12
NC
Pin Definition
PIN
SIGNAL
1
GND
2
GND
3
12V
4
12V
Pin Definition
ATX 12V Power Connector: JPW1
This 12V power connector is used to provide power to the CPU.
ATX 24-Pin Power Connector: ATX1
This connector allows you to connect an ATX 24-pin power supply. To
connect the ATX 24-pin 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 as you like.
If you
’
d like to use the 20-pin 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.
ATX1
1
12
24
13
pin 12
pin 13
JPW1
1
3
4
2
MSI Reminds You...
1. These two connectors connect to the ATX power supply and have
to work together to ensure stable operation of the mainboard.
2. Power supply of 350 watts (and above) is highly recommended
for system stability.
3. ATX 12V power connection should be greater than 18A.
