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Chapter 2 Hardware Installation
Chapter 2
The 4-bit input and 4-bit output Digital I/O connector provides powering-on function to exter-
nal devices that are connected to these connectors.
Digital I/O Connector
Digital I/O Power Connector
Digital I/O Connector
Pins
Function
0
DIO7
1
DIO6
2
DIO5
3
DIO4
4
DIO3
5
DIO2
6
DIO1
7
DIO0
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.
CPU Fan
1
3
Sense
Power
Ground
System Fan
1
3
Sense
Power
Ground
1
4
+12V Ground 5VSB +5V
Digital I/O power
Digital I/O