Intel 630 - Pentium 4 630 3.0GHz 800MHz 2MB Socket 775 CPU User Manual page 23

These headers are used for connecting the additional USB port plug.
attaching an option USB cable, your can be provided with two additional USB
plugs affixed to the back panel.
(3) IDE Activity LED: HDLED
This connector connects to the hard disk activity indicator light on the case.
(4) Turbo LED switch: TBLED
Since the motherboard's turbo function is always on. The turbo LED will
remain constantly on while the system power is on. You may wish to connect
the Power LED from the system case to this lead. See the figure below.
(5) Reset switch lead: RST
This 2-pin connector connects to the case-mounted reset switch for rebooting
your computer without having to turn off your power switch.
preferred method of rebooting in order to prolong the lift of the system's
power supply. See the figure below.
(6)
Keyboard lock switch: KEYLOCK
This 2-pin connector connects to the case-mounted key switch for locking the
keyboard for security purposes.
(7)
Speaker connector: SPKR
This 4-pin connector connects to the case-mounted speaker. See the figure below.
(8) 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.
(9) Power switch: PWR
This 2-pin connector connects to the case-mounted power switch to power
ON/OFF the system.
Pin 1
USB2
20
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