Chapter 2 – DFI HD636-H81CS User Manual
Page 26
26
Chapter 2 Hardware Installation
Chapter 2
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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
LPC Debug Port
2
1
12
11
The LPC connector is used for the debug function and its pin functions are listed below.
Pins
Pin Assignment
Pins
Pin Assignment
1
CLK
2
LAD1
3
RST#
4
LAD0
5
FRAME#
6
VCC_+3V
7
LAD3
8
GND
9
LAD2
10
x
11
SERIRQ
12
48MHz
LPC Debug Port
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