Acer Aspire R3700 Service Guide - Page 53

System Board Pin Definition Jumper/Header Name SYS_FAN1 (4 PIN) CLR_CMOS1 BAT1( 3 PIN) FP1 Function SYSTEM FAN HEADER CLEAR CMOS HEADER Definition 1: GND 2: 5V_S0 3: FANTAC 4. PWM CONTROL 1-2: CLEAR CMOS 2-3: NORMAL (Default) BATTERY HEADER 3: Battery power output 2: NC 1,4,5: GND Front panel header 1: GND 2: F_USBPWR2 3: USB_P5+ 4: USB_P55: GND 6: F_USBPWR2 7: USB_P4+ 8: USB_P49: OBR_GPIO 10: KEY 11: PANSWHJ 12: LEDP 13: GND 14: PMSLED Chapter 5 47