Front Panel Connector; Cooling Fan Connectors - DFI SU171 User Manual

Front Panel Connector

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.
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.
PWR-BTN - Power Switch
This switch is used to power on or off the system.
Pin Pin Assignment
3 3V3
HDD-LED
5 HDD_LED
PWR-LED
7 Ground
9 RST Signal
RESET-SW
PWR-BTN
11 N.C.
Chapter 2 Hardware Installation
Chapter 2
HDD-LED
RESET-SW
Front
Panel
11 1
12 2
PWR-LED
PWR-BTN
Pin Pin Assignment
2 3V3SB
4 3V3SB
6 Power_LED
8 Ground
10 Power_Button

Cooling Fan Connectors

Sense 1
Power
Ground
3
CPU Fan
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 ("SIO NUVOTON6106D" submenu) of the BIOS will display the current
speed of the cooling fans. Refer to chapter 3 for more information.
23
System Fan 2 1 Ground
Power
3
Sense
1
Ground
Power
3
Sense
System Fan 1
www.dfi .com