16
(6) Speaker connector: SPK
This 4-pin connector connects to the case-mounted speaker. See the figure below.
(7) Power LED: PWRLED
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: PSON
This 2-pin connector connects to the case-mounted power switch to power ON/OFF the
system.
System Case Connections
RST
RSTSW
GND
Pin 1
SMI
VCC3
EXTSMI
Pin 1
HDLED
VCC5
HDDLED
Pin 1
PSON
5VSBY
PWRBTN
Pin 1
SPK
VCC5
GND
GND
SPKR
Pin 1
PWRLED
VCC5
GND
NC
KEYLOCK
Pin 1
GND
(9) Wake On-LAN Headers (3-pin) : WOL
This connector connects to a LAN card with a WAKE ON-LAN output. This connector
power up the system when a wake up signal is received through the LAN card.
NOTE:
This feature requires that Wake On LAN or Ring In Wake up is enabled.
Wake-On-LAN Headers
WOL
1
3
5V
SB
GN
D
WO
L
(10) FAN Speed Headers (3-pin) : PWRFAN, CHSFAN, CPUFAN
These connectors support cooling fans of 350mA (4.2 Watts) or less, 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 connector.
