Acer Aspire X1920 Acer Aspire X1920 Desktop Service Guide - Page 83

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 CPU_FAN. 2. Connect the standard power supply connector to ATX_POWER. 3. Connect the case switches and indicator LEDs to the F_PANEL. 4. Connect the system cooling fan connector to SYS_FAN. 5. Connect the auxiliary case power supply connector to ATX12V. CPU_FAN: CPU Cooling FAN Power Connector Pin Signal Name 1 GND 2 +12V 3 Sense 4 PWM Function System ground Power +12V Sensor PWM Aspire AX1920 Service Guide 75