MANO520 Mini ITX Motherboard
Board and Pin Assignments
17
2.4.9
Fan Connectors (CN18 and CN19)
The motherboard has two fan connectors. You can find fan speed option within BIOS
Setup Utility if fan is installed. For further information, see BIOS Setup Utility:
Advanced\Hardware Monitor\PC Health Status in section 4.4.
CN18: 4-pin (pitch=2.54mm)
1 4
CN19: 3-pin (pitch=2.54mm)
2.4.10
GPIO Header (CN20)
The CN20 is a 5x2-pin (pitch=2.00mm) header for GPIO interface.
Pin
Signal
1
GND
2
+12V
3
FAN Speed Detection
4
FAN Speed Control
Pin
Signal
1
GND
2
+12V
3
FAN Speed Detection
Pin Signal
Pin
Signal
1
+5V
2
SIO_GPI70
(0xA06 Bit0, H)
3
SIO_GPO74
(0xA06 Bit4, H)
4
SIO_GPI71
(0xA06 Bit1, H)
5
SIO_GPO75
(0xA06 Bit5, H)
6
SIO_GPI72
(0xA06 Bit2, H)
7
SIO_GPO76
(0xA06 Bit6, H)
8
SIO_GPI73
(0xA06 Bit3, H)
9
SIO_GPO77
(0xA06 Bit7, H)
10
GND