Power Supply - MSI MEGA MPC 915 User Manual

2.4 Power Supply

The system is equipped with a 260W (PFC) ATX power supply. The power
cord of the power supply has been connected to the connector ATX1 on the mainboard
when shipped out.
power connector JPW 1 on the mainboard. This 12V power connector is used to
provide power to the CPU.
20
10
ATX1 Pin Definition
PIN SINGAL
1 3.3V
2 3.3V
3 GND
4 5V
5 GND
6 5V
7 GND
8 PW_OK
9 5V_SB
10 12V
Except the 20-pin connector ATX1, you can find another 4-pin
ATX1
PIN SIGNAL
11 3.3V
12 -12V
13 GND
14 PS_ON
15 GND
16 GND
17 GND
18
19 5V
20 5V
2-5
Chapter 2 - Mainboard Hardware
2
11
4
1
JPW1
JPW1 Pin Definition
PIN
1
2
3
4
1
3
SINGAL
GND
GND
12V
12V