2-2 P55-IT
1.Power LED(+)
2.N/C
3.GND
4.Keylock
5.GND
+
5
1
1
4
+
+
5
6
2
4
5,6 GND
3,4 +12V
2-2 Connectors and Jumpers
This section describes all of the connectors and jumpers equipped in the
motherboard. Please refer to
Figure 1-1
for actual location of each connector and
jumper.
J1
KeyLock
- Keyboard lock switch & Power LED connector.
J2
Speaker
- connect to the system's speaker for beeping.
1. Speaker
2. N/C
3. GND
4. GND
J3
Reset
- Close to restart system.
J4
Turbo Switch
: Open for slower speed while Close for
higher speed. A BIOS hot key <CTRL><ALT><+>
also brings system to a higher speed while<CTRL>
<ALT><-> set system to a slower speed(When J4 is open.).
J5
Turbo LED indicator -
LED ON when higher speed is
selected.
J6
Power Saving LED indicator -
LED ON when system is in
any Saving mode.
J7
The Power supply of the CPU cooling fan
1,2 GND
JP5
IDE LED indicator
- LED ON when Onboard PCI IDE
Harddisks activites.
3
1
