MSI 915GLM4 User Guide - Page 21

Power Supply

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Hardware Setup 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. ATX 24-Pin Power Connector: ATX1 This connector allows you to connect an SSI power supply. To con- nect the SSI power supply, make sure the plug of the power supply is inserted in the proper orientation and the pins are pin 13 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 pin 12 installation. Pin Definition 13 1 ATX1 24 12 PIN SIGNAL PIN SIGNAL 1 +3.3V 13 2 +3.3V 14 3 GND 15 4 +5V 16 5 GND 17 6 +5V 18 7 GND 19 8 PWROK 20 9 5VSB 21 10 +12V 22 11 +12V 23 12 NC 24 +3.3V -12V GND PS-ON# GND GND GND Res +5V +5V +5V GND ATX 12V Power Connector: JPW1 This 12V power connector is used to provide power to the CPU. JPW1 Pin Definition 2 1 JPW1 4 3 PIN SIGNAL 1 GND 2 GND 3 12V 4 12V 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. 2-9

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2-9
Hardware Setup
Power Supply
The mainboard supports ATX power supply for the power system. Be-
fore inserting the power supply connector, always make sure that all compo-
nents are installed properly to ensure that no damage will be caused.
PIN
SIGNAL
1
GND
2
GND
3
12V
4
12V
JPW1 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 SSI power supply. To con-
nect 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.
pin 12
pin 13
JPW1
1
3
4
2
ATX1
1
12
24
13
Pin Definition
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
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.