17
(3) Speaker connector: SPEAK1
This 4-pin connector connects to the case-mounted speaker. See the figure below.
(4) Power LED: PWR LED1/ 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.
USB Port Headers
Pin 1
USB1
VCC
-
DA
TA
GND
+D
AT
A
VCC
OC
-
DA
TA
GND
+D
AT
A
Pin 1
USB2
VCC
-
DATA
G
ND
+D
AT
A
VCC
OC
-
DA
TA
G
ND
+D
AT
A
System Case Connections
HD
LE
D
R
ESE
T
VC
C5
GND
VCC5
P
W
R L
E
D
PW
RB
TN
PW
R
B
T
N
PW
RL
ED
H
DDLE
RSTSW
NC
GN
D
JW FP
Pin 1
SPEAK
SPKR
G
ND
NC
VC
C5
Pin 1
PWRLED
Pin 1
