MSI 661FM3-L User Manual - Page 21
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M S-7082 M ainboard
Power Supply
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.
11
20
CONN1
ATX 12V Power Connector: JPW2000
This 12V power connector is used to provide power to the CPU.
JPW2000
Important
1. Maker 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.
2-8
CONN1 Pin Definition
1
PIN
1
2
3
4
5
6
7
8
10
9
10
2
1
4
3
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
Pin Definition
PIN
SIGNAL
1
GND
2
GND
3
12V
4
12V