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Connecting Power, Chassis Fan, and Panel
After you have installed the mainboard into the system case, connect the
power cable from the case power supply unit to the mainboard power
connector ATX1. Connect the chassis (if your case has them) to the 12V
power supply connector PWRFAN1 on the mainboard. Then connect the
case switches and indicators to the PANEL1 connector and the CLED1
connector on the mainboard.
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PWRFAN1
ATX1
PANEL1
CLED1