MSI K8N NEO4-F User Guide - Page 24

M S-7125 ATX M ainboard 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. ATX 24-Pin Power Connector: ATX1 This connector allows you to connect an SSI power supply. To connect the SSI power supply, make sure the plug of the power supply is inserted in the proper orientation and the pins are aligned. Then pin 13 push down the power supply firmly into the connector. You may use the 20-pin ATX power supply or 24-pin SSI power supply as you like. If you'd like to use the ATX power supply, please plug your power supply along with pin 1 & pin 13 (refer to the image at the right hand). There is also a foolproof design on pin 11, 12, 23 & 24 to avoid wrong installation. pin 12 Pin Definition 12 24 ATX1 1 13 PIN SIGNAL 1 +3.3V 2 +3.3V 3 GND 4 +5V 5 GND 6 +5V 7 GND 8 PW R OK 9 5VSB 10 +12V 11 +12V 12 NC PIN SIGNAL 13 +3.3V 14 -12V 15 GND 16 PS-ON# 17 GND 18 GND 19 GND 20 Res 21 +5V 22 +5V 23 +5V 24 GND ATX 12V Power Connector: JPW1 This 12V power connector is used to provide power to the CPU. 3 4 1 2 JPW1 JPW1 Pin Definition PIN SIGNAL 1 GND 2 GND 3 12V 4 12V MSI Reminds You... 1. These two connectors connect to the ATX power supply and have to work together to ensure stable operation of the mainboard. 2. Power supply of 350 watts (and above) is highly recommended for system stability. 3. For ATX 12V power connection, it should be greater than 18A. 2-10