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Chapter 2 Hardware Installation
Chapter 2
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
Sense
Power
Ground
3
COM2
COM1
Front Panel Connector
HDD-LED
RESET-SW
PWR-LED
ATX-SW
12
11
2
1
Front
Panel
HDD-LED - HDD LED
This LED will light when the hard drive is being accessed.
RESET SW - Reset Switch
This switch allows you to reboot without having to power off the system.
ATX-SW - ATX Power Switch
This switch is used to power on or off the system.
PWR-LED - Power/Standby LED
When the system’s power is on, this LED will light. When the system is in the S1 (POS - Power
On Suspend) state, it will blink every second. When the system is in the S3 (STR - Suspend To
RAM) state, it will blink every 4 seconds.
Pin Pin Assignment
Pin Pin Assignment
HDD-LED
3
HDD Power
PWR-LED
2
LED Power
5
Signal
4
LED Power
RESET SW
7
Ground
6
Signal
9
RST Signal
ATX-SW
8
Ground
11 N.C.
10
Signal
COM2
COM1