DFI HD171-H81 - Manual (Page 24)

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24
Chapter 2 Hardware Installation
Chapter 2
Cooling Fan Connectors
The fan connectors are used to connect cooling fans. The cooling fans will provide adequate
airflow throughout the chassis to prevent overheating the CPU and system board components.
BIOS Setting
The Advanced menu (“PC Health Status” submenu) of the BIOS will display the current speed
of the cooling fans. Refer to the chapter 3 for more information.
System Fan
CPU Fan
The 8-bit Digital I/O connector provides powering-on function to external devices that are con-
nected to these connectors.
Digital I/O Connector
Digital I/O Connector
Pins Function
0 DIO7
1 DIO6
2 DIO5
3 DIO4
4 DIO3
5 DIO2
6 DIO1
7 DIO0
Digital I/O
1 3
Sense Power Ground
1
4
Sense
Power
Ground
Speed Control