User`s manual

20
This 2-pin connector connects to the case-mounted reset switch for
rebooting your computer without having to turn off your power switch.
This is a preferred method of rebooting in order to prolong the life of the
system’s power supply. See the figure below.
(6) Power LED (J34)
The Power LED is light on while the system power is on. Connect the
Power LED from the system case to this pin.
(8) Power switch: PWR BTN (J34)
This 2-pin connector connects to the case-mounted power switch to power
ON/OFF the system.
(9) FAN Speed Headers (3-pin) : Chassis FAN, SYSFAN, CPUFAN
These connectors support cooling fans, depending on the fan manufacturer,
the wire and plug may be different. The red wire should be positive, while
the black should be ground. Connect the fan’s plug to the board taking into
consideration the polarity of the connector.
System Front Panel J34
Pin 1
HDLED
RESET
PWR LED
PWRBT
IRDA
SMB Clk
SMB Dat
KEY
NC
YEL
PWRBTN
GRN
PSW+
IRRX
RSTSW
VCC
GND
HDDLED
VCC
IRTX
GND
SMBUS
CPU FAN HEADER
CPU
FAN
1
4
SYSTEM FAN2 HEADER
SFAN
2
1
4
SFAN
4
1 4
SFAN
3
1 4