MSI X2 User Guide - Page 27
Power Supply
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Hardware Setup Power Supply SSI 24-Pin System Power Connector: JPWR1 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 push pin 13 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 JPWR1 1 12 13 24 JPWR1 Pin Definition PIN SIGNAL PIN SIGNAL 1 +3.3V 13 +3.3V 2 +3.3V 14 -12V 3 GND 15 GND 4 +5V 16 PS-ON# 5 GND 17 GND 6 +5V 18 GND 7 GND 19 GND 8 PWROK 20 Res 9 5VSB 21 +5V 10 +12V 22 +5V 11 +12V 23 +5V 12 NC 24 GND Important Power supply of 350watts (and above) is highly recommended for system stability. 2-7
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