- 16 -
Step 6
Connect Front Panel Switches/LEDs/Speaker/USB connectors
You can find there are several different cables already existing in the system
case and originating from the computer's front-panel devices (HDD LED, Power
LED, Reset Switch, PC Speaker, or USB devices etc.) These cables serve to con-
nect the front-panel switches, LEDs, and USB connectors to the mainboard's
front-panel connectors group, as shown below.
Front Panel
Extended USB Header
1. SPEAKER
8. JUSB3 & JUSB4
2. EPMI
3. RST
4. HLED
5. PWR LED
6. PWR ON
7. GLED
+5
V
U
SB
D
0-
U
SB
D
0+
G
N
D
KE
Y
+5
V
U
SB
D
1-
U
SB
D
1+
G
N
D
SPEAKER EPMI
RST HLED
- +
PWR
LED
- +
PWR
ON
GLED
+ -
8
JUSB3 & JUSB4
1
1
1
2
3
4
7
6
5
2
2
1
Front Panel
SPEAKER EPMI RST HLED
- +
PWR
LED
- +
PWR
ON
GLED
+ -
J3
JUSB3
JUSB4
USB_PORT4,5USB_PORT6,7
2
1
1
2