
2-10
M S-7100 ATX M ainboard
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
-5V
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
ATX 24-Pin Power Connector: JPWR1
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.
JPWR1
13
24
12
1
PIN
SIGNAL
1
GND
2
GND
3
12V
4
12V
JPW1 Pin Definition
ATX 12V Power Connector: JPWR2
This 12V power connector is used to provide power to the CPU.
JPWR2
3
4
2
1
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 450 watts (and above) is highly recommended for
system stability.
3. For ATX 12V power connection, it should be greater than 18A.
4. For this model, you
must
use the power supply that with a -5V pin
supply.