Acer Aspire X1420G Acer Aspire X1400 and X1420 Desktop Series Service Guide - Page 82

Connecting Case Components After you have installed the motherboard into a case, you can begin connecting themotherboard components. Refer to the following: 1. Connect the CPU cooling fan cable to CPUFAN1. 2. Connect the standard power supply connector to PWR2. 3. Connect the case switches and indicator LEDs to the LEDH1. 4. Connect the auxiliary case power supply connector to PWR1. CPUFAN1: CPU Cooling Fan Power Connector Pin Signal Name 1 GND 2 +12V 3 Sense 4 PWM Function System ground Power +12V Sensor PWM 74 Aspire AX1400 Service Guide