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(2) USB Port Headers (9-pin) : USB3, USB4
The 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.
USB Port Headers
Pin 1
USB4
VCC
-
DA
TA
GN
D
+
DAT
A
VCC
OC
-
DA
TA
GND
+
DAT
A
Pin 1
USB3
VC
C
-
DA
TA
GND
+
DAT
A
VCC
OC
-
DA
TA
GND
+
DAT
A
(3) 1394 Port Headers (9-pin): 1394A, 1394B
1394 Port Headers
1394A
Pin 1
TP
A
-
G
ND
V
CC
TP
B
-
TP
A
+
G
ND
GN
D
V
CC
TP
B
+
1394B
Pin 1
TP
A
-
G
ND
V
CC
TP
B
-
TP
A
+
G
ND
GN
D
V
CC
TP
B
+
(4) Speaker connector: SPEAK
This 4-pin connector connects to the case-mounted speaker. See the figure below.
(5) 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.
(6) IDE Activity LED: IDE LED
This connector connects to the hard disk activity indicator light on the case.
(7) 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.
(8) Power switch: PWR BTN
This 2-pin connector connects to the case-mounted power switch to power ON/OFF the
system.
