- 16 -
Step 6
Connect Front-panel Switches/LEDs/Speaker/Audio/USB
connectors
You can find there are several different cables already existing in the system
case and originating from the computers front-panel devices (HDD LED,
Power LED, Reset Switch, PC Speaker, or USB devices etc.) These cables
serve to connect the front-panel switches, LEDs, USB, Line-Out, and Mic-In
connectors to the mainboards front-panel connectors group (J12, SJP1, and
USB2), as shown below.
1. ATX Soft Power On/Off (PWON)
2. EPMI
(Hardware System Management
Interface)
+
++
-
--
PW
ON
EP
M
I
SP
K
G L
E
D
PW
L
E
D
HD L
E
D
RS
T
J 12
1
SJ
P1
1
USB2
1
+
+
+
-
-
-
P W O N
E P M I
S P K
G LE D
P W LE D
H D LED
R S T
J1
2
1
+
+
+
-
-
-
P W O N
E P M I
S P K
G LE D
P W LE D
H D LED
R S T
J1
2
1
