Mainboard User’s Manual
Setting Jumper Switches
Jumpers are sets of pins which can be connected together with
jumper caps. The jumper caps change the way the mainboard
operates by changing the electronic circuits on the mainboard. If a
jumper cap connects two pins, we say the pins are SHORT. If a
jumper cap is removed from two pins, the pins are OPEN.
Jumper JP4: Clear CMOS Memory
Use this jumper to clear the contents of the CMOS memory. You
may need to clear the CMOS memory if the settings in the Setup
Utility are incorrect and prevent your mainboard from operating.
To clear the CMOS memory, disconnect all the power cables from
the mainboard and then move the jumper cap into the CLEAR
setting for a few seconds.
Function
Jumper Setting
Normal Operation
Short Pins 2-3
Clear CMOS Memory
Short Pins 1-2
Jumper JP1: Keyboard Power On Selector
If you enable the keyboard power on feature, you can use hot keys
on your keyboard as a power on/off switch for the system.
Note:
The system must provide 1A on the +5VSB (+5V Standby)
signal before using the Keyboard Power On function.
Function
Jumper Setting
Disable Keyboard Power On
Short Pins 1-2
Enable Keyboard Power On
Short Pins 2-3
12
1
JP4
JP1
1
