MSI PT880 User Guide - Page 30
Power Supply
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UPC - 816909006094
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Hardware Setup 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 20-Pin Power Connector: ATX1 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. 10 20 4 2 3 1 JPW1 1 11 ATX1 JPW1 Pin Definition PIN SIGNAL 1 GND 2 GND 3 12V 4 12V ATX1 Pin Definition PIN SIGNAL PIN 1 3.3V 11 2 3.3V 12 3 GND 13 4 5V 14 5 GND 15 6 5V 16 7 GND 17 8 PW_OK 18 9 5V_SB 19 10 12V 20 SIGNAL 3.3V -12V GND PS_ON GND GND GND -5V 5V 5V MSI Reminds You... 1. Power supplies of 300watt (and up) are highly recommended for system stability. 2. Please refer to the Intel/AMD websites for recommended power supplies. 2-9
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