Acer Aspire M3920 Service Manual page 70

Internal header pin definition
Header Name
62
Function
CPU FAN HEADER
FRONT PANEL HEADER
FRONT USB HEADER
FRONT USB HEADER
Definition
1: GND
2: +12V
3: SENSE
1: SATALED+
2: ACPI_LED
3: SATALED-
4: 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
Chapter 5