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M S-7181 M icro-ATX M ainboard
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 20-Pin Power Connector: JWR1
This connector allows you to connect to an ATX power supply. To connect to the ATX
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.
10
1
JWR1
ATX 12V Power Connector: JPW1
This 12V power connector is used to provide power to the CPU.
4
2
3
1
MSI Reminds You...
There is a mechanis m of this mainboard to protect it from being
damaged. The power will shut down automatically in two conditions: the
temperature of CPU reaches 100
booting up. Please follow the instructions below for this issue:
1. The power LED will blink continously. You should unplug the power
cord or turn off the power switch.
2. After the power LED stop blinking, plug on the power cord or turn on
the power switch, then you can reboot your system again.
2 - 8
Power Supply
JWR1 Pin Definition
PIN
20
1
2
3
4
5
6
7
8
11
9
10
PIN
1
JPW1
2
3
4
SIGNAL
PIN
SIGNAL
3.3V
11
3.3V
3.3V
12
-12V
GND
13
GND
5V
14
PS_ON
GND
15
GND
5V
16
GND
GND
17
GND
PW_OK
18
-5V
5V_SB
19
5V
20
5V
12V
SIGNAL
GND
JPW1 Pin Definition
GND
12V
12V
o
C, or the low voltage occurs during
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