Chapter 2 – DFI DL631-C226 User Manual
Page 25
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25
Chapter 2 Hardware Installation
Chapter 2
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
Cooling Fan Connectors
These 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 chapter 3 for more information.
4
1
Sense
Power
Ground
Speed
Control
CPU Fan
System Fan 1
System Fan 2
1
Sense
Power
Ground
3
1
Sense Power Ground
3
Pins
Pin Assignment
Pins
Pin Assignment
1
GND
2
+12V
3
DIO7
4
+12V
5
DIO6
6
GND
7
DIO5
8
+5V
9
DIO4
10
+5V
11
DIO3
12
GND
13
DIO2
14
+5V_Standby
15
DIO1
16
+5V_Standby
17
DIO0
18
GND
19
GND
19
1
2
Digital I/O