Power Supply; Atx 20-Pin Power Connector: Conn1; Atx 12V Power Connector: Jpw1 - MSI 655 Max User Manual

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.

ATX 20-Pin Power Connector: CONN1

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.

ATX 12V Power Connector: JPW1

This 12V power connector is used to provide power to the CPU.
1 3
2 4
JPW1
JPW1 Pin Definition
PIN SIGNAL
1 GND
2 GND
3 12V
4 12V

Power Supply

CONN1 Pin Definition
PIN SIGNAL
1 3.3V
2 3.3V
3 GND
4 5V
5 GND
6 5V
7 GND
8 PW_OK
9 5V_SB
10 12V
Hardware Setup
CONN1
1 10
20
11
PIN SIGNAL
11 3.3V
12 -12V
13 GND
14 PS_ON
15 GND
16 GND
17 GND
18 -5V
19 5V
20 5V
2-9