Acer Aspire M3920 Service Guide - Page 70

Internal header pin definition Header Name Function CPU FAN HEADER Definition 1: GND 2: +12V 3: SENSE FRONT PANEL HEADER FRONT USB HEADER FRONT USB HEADER 1: SATALED+ 2: ACPI_LED 3: SATALED4: PWR_LED 5: GND 6: PWR_SW 7: RESET 8: GND 9: NC 10: Key 11: NC 12: VCC 13: NC 14: -ACTIVE_C 1: USBVCC_1 2: USBVCC_1 3: USB0_XN 4: USB1_XN 5: USB0_XP 6: USB1_XP 7:GND 8: GND 9: KEY 10: GND 1: USBVCC_2 2: USBVCC_2 3: USB2_XN 4: USB4_XN 5: USB2_XP 6: USB4_XP 7:GND 8: GND 9: KEY 10: GND 62 Chapter 5