AMD 770 User Manual page 21

(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, SYSFAN2, 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 positive, while the
black should be ground. Connect the fan's plug to the board taking into consideration the
polarity of connector.
Pin 1
USB Port Header
PWRLED
Pin 1
JW FP
SPEAK
Pin 1 Pin 1
System Case Connections
16