- 16 -
Step 6
Connect Front Panel LEDs/Switches/Speaker/USBs
You can find there are several cables existing in the system case and originat-
ing from the front panel devices (HDD LED, Green LED, Reset switch, PC
Speaker, and USB devices etc.). These cables serve to connect the front-panel
LEDs, switches, speaker, and USB connectors to the mainboard's front-panel
connectors group, as shown below.
1. Green LED (GLED)
2. HDD LED (HLED)
3. ATX Soft Power On/Off (PWON)
4. Hardware Reset Switch (RST)
5. Power LED (PLED)
6. Hardware System Management
Interface (EPMI)
7. PC Speaker (SPEAKER)
8. Extended USB Headers (JP7-USB 5&6)
1
JP 19
1
EPMI SPEAKER
RST
HLED
-
+
+
-
-
+
PLED
PWON
GLED
2
3
4
5
6
7
1
JP 7
8
1 3 5 7 9
2 4 6 8 10
1=VCC
3=DATA0-
5=DATA0+
7=GROUND
9=KEY
2=VCC
4=
6=
8=GROUND
10=N/C
DATA1-
DATA1+
+
+
+
-
-
-
RST
HLED
GLED
SPEAKER
EPMI
PWON
PLED
1
JP 19
USB 5&6
JP 7
1