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MANO522 Mini ITX Motherboard
2.4.7
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 (CPU fan, 4x1-pin pitch=2.54mm):
Pin
Signal
1
GND
2
+12V
3
FAN Speed Detection
4
FAN Speed Control
CN19 (System fan, 3x1-pin pitch=2.54mm):
Pin
Signal
1
GND
2
+12V
3
FAN Speed Detection
2.4.8
GPIO Header (CN20)
The CN20 is a 5x2-pin (pitch=2.00mm) header for digital I/O interface.
Pin
Signal
1
+5V
SIO_GPO74
3
(0xA06 Bit4, H)
SIO_GPO75
5
(0xA06 Bit5, H)
SIO_GPO76
7
(0xA06 Bit6, H)
SIO_GPO77
9
(0xA06 Bit7, H)
16
Pin
Signal
SIO_GPI70
2
(0xA06 Bit0, H)
SIO_GPI71
4
(0xA06 Bit1, H)
SIO_GPI72
6
(0xA06 Bit2, H)
SIO_GPI73
8
(0xA06 Bit3, H)
10
GND
1
4
1
3
Board and Pin Assignments
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