Power Supply - MSI MS-7504 User Manual

MS-7504 Mainboard

Power Supply

ATX 24-Pin Power Connector: PWR2
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 thae proper orientation and the pins are
aligned. Then push down the power supply firmly into the connec-
tor.
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 sup-
ply along with pin 1 & pin 13 (refer to the image at the right hand).
12
1
ATX 12V Power Connector: PWR1
This 12V power connector is used to provide power to the CPU.
Important
1. Make sure that all the connectors are connected to proper ATX power sup-
plies 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.
2-8
24
PIN
1
2
3
4
5
6
7
8
9
10
13
1 1
PWR2
12
Pin Definition
3 4
PIN
1 2
1
PWR1
2
3
4
Pin Definition
SIGNAL PIN SIGNAL
+3.3V 13 +3.3V
+3.3V 14 -12V
GND 15 GND
+5V 16 PS-ON#
GND 17 GND
+5V 18 GND
GND 19 GND
PWR OK 20 NC
5VSB 21 +5V
+12V 22 +5V
+12V 23 +5V
+3.3V 24 GND
SIGNAL
GND
GND
12V
12V
pin 13
pin 12