MSI 661FM3-V User Guide - Page 11

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. A 300W or above power supply is suggested. 10 20 12V ATX 20-Pin Power Connector: CONN1 5V_SB This connector allows you to connect to an ATX power PW _O K GND supply. To connect to the ATX power supply, make sure 5V GND the plug of the power supply is inserted in the proper 5V orientation and the pins are aligned. Then push down GND 3.3 V the power supply firmly into the connector. 3.3 V 1 11 ATX 12V Power Connector: JPW1 GND 12 This 12V power connector is used to provide power to the CPU. 12V 34 5V 5V -5V GND GND GND P S _ ON GND -12 V 3.3 V GND 12V Floppy Disk Drive Connector: FDD1 The mainboard provides a standard floppy disk drive connector that supports 360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types. Chassis Intrusion Switch Connector: JCI1 This connector is connected to 2-pin connector chassis switch. If the 2 GND 1 C I NTRO Chassis is open, the switch will be short. The system will record this status. To clear the warning, you must enter the BIOS setting and clear the status. R CD-In Connector: CD_IN1 GND The connector is for CD-ROM audio connector. L 7