16
USB Port Headers
Pin 1
USB
VC
C
-
DA
TA
GN
D
+D
AT
A
VC
C
OC
-
DA
TA
GN
D
+D
AT
A
(3)Speaker connector: SPEAK1
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) Hard disk 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.
System Case Connections
HDL
E
D
R
ESET
VCC5
GND
VCC5
P
W
R L
E
D
P
W
RBTN
PW
R
B
T
N
PW
RL
ED
HDDLE
RS
T
S
W
NC
G
ND
JW FP
Pin 1
SPEAK
SPK
R
GND
NC
VCC5
Pin 1
PWRLED
Pin 1