Intel G41 Express Chipset User Manual page 13

(2) USB Port Headers (9-pin) : USB2
This USB header is used for connecting the additional USB port plug. By
attaching an option USB cable, your can be provided with two additional USB
plugs affixed to the back panel.
(3) Speaker connector: SPEAK
This 4-pin connector connects to the case-mounted speaker. See the figure
below.
(4) Power LED: PWR LED
The Power LED is light on while the system power is on. Connect the Power
LED from the system case to this pin.
(5) IDE Activity LED: HD LED
This connector connects to the hard disk activity indicator light on the case.
(6) Reset switch lead: RESET
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 lift of the system's power supply.
See the figure below.
(7) Power switch: PWR BTN
This 2-pin connector connects to the case-mounted power switch to power
ON/OFF the system.
(8) FAN Power Headers: SYSFAN1(3-pin), CPUFAN (4-pin)
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
USB2
Pin 1
USB Port Header
PWRLED
Pin 1
JW FP
SPEAK
Pin 1 Pin 1
System Case Connections
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