4xem BBPCHOME User Manual - 3.8. Setting Jumpers

Mainboard User’s Manual 

3.8. Setting Jumpers   

Refer to the following illustration and instructions to set the jumpers 

on your motherboard. 

3.8.1. Clear CMOS Jumper (JP4) 

You may need to clear the CMOS if your system cannot boot up 

because you forgot your password, the CPU clock setup is incorrect, 

or the CMOS setting need to reset to default values after the system 

BIOS has been updated. 

Refer to the following solutions to reset your CMOS setting: 

Solution A 

1.  Power off the system and disconnect the power cable. 

2.  Place a shunt to short pin 2 and pin 3 of JP4 for five 

seconds. 

3.  Place the shunt back to pin 1 and pin 2 of JP4. 

4.  Power on the system. 

 Setting Jumpers 

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