Instruction manual

2-8
MS-7222 Micro-ATX Mainboard
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.
JPW2
13
4
2
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 PWR OK
9 5VSB
10 +12V
11 +12V
12 NC
Pin Definition
PIN SIGNAL
1 GND
2 GND
3 12V
4 12V
JPW1 Pin Definition
ATX 24-Pin Power Connector: CONN1
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.
ATX 12V Power Connector: JPW2
This 12V power connector is used to provide power to the CPU.
ATX1
1
12
24
13
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.