Mainboard KI51PV-754

USB Power Selection Header: JP2

USB devices attached to USB ports of the back panel can awaken the system from sleep mode. In order to enable this functionality, you must adjust the jumper caps on JP2 header for +5V or +5VSB mode depending on which USB port that the USB device is attached to.

 

JP2

Assignment

Assignment

 

 

 

S1 sleep mode (CPU stopped, DRAM

1

 

+5V

refreshed, system running in low power

Pin 1-2 Close

 

mode)

 

 

 

 

 

S3/S4/S5 sleep modes (no power to

1

 

+5VSB

CPU, DRAM in slow refresh, power

Pin 2-3 Close

 

supply in reduced power mode)

 

 

Note: Close stands for putting a jumper cap onto two header pins.

Clear CMOS Jumper: JP1

The “Clear CMOS” function is used when you are unable boot your system and need to reset the BIOS settings (CMOS settings) back to the manufacturer’s original settings. This is also a way to reset the system password if you have forgotten it.

 

 

 

 

 

JP1

Assignment

 

 

 

 

 

Pin 1-2 Close

Normal (Default)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin 2-3 Close

Clear CMOS Data

 

 

 

 

 

 

 

 

 

 

Note: Close stands for putting a jumper cap onto two header pins.

The following steps explain how to reset your CMOS configurations when you forgot a system password.

1.Turn off your system and disconnect the AC power cable.

2.Set JP1 header to OFF (2-3 Closed).

3.Wait several seconds.

4.Set JP1 header to ON (1-2 closed).

5.Connect the AC power cable and turn on your system.

6.Reset your new password.

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