www.dfi.com
CS101-Q370/C246/H310
Chapter 2
- Hardware Installation
22
Cooling Fan Connector
The fan connector is used to power a cooling fan. Cooling fans will provide adequate airflow
throughout the chassis to prevent overheating the CPU and system board components. The
4-pin fans provide PWM to modulate fan speed.
BIOS Setting
The Advanced menu (“NCT6116D HW Monitor” submenu) of the BIOS will display the current
speed of the cooling fan. Refer to the chapter 3 for more information.
The 8-bit Digital I/O connector provides powering-on function to external devices that are con-
nected to these connectors.
1
4
+12V
GND
5VSB
+5V
Digital I/O Power
Digital I/O
Digital I/O
▼
Digital I/O Connector Pin Assignment
Pin Function
1
DIO7
2
DIO6
3
DIO5
4
DIO4
5
DIO3
6
DIO2
7
DIO1
8
DIO0
1
8
Pin Assignment
1
Ground
2
Power
3
Sense
4
Speed Control
▼
PWM Fan Pin Assignment
1
▲
4-pin PWM Fan Connector
(CPU Fan)
►
Internal I/O Ports
►
Internal I/O Ports
