SOYO SY-P4RS300 Quick Start Manual page 13

CMOS Clear (JU600)
In some cases the CMOS memory may contain wrong data, follow the steps below to
clear the CMOS memory.
1. Clear the CMOS memory by momentarily shorting pin 2-3 on jumper JU600. Its
white cap can easily identify this jumper.
2. Put the jumper back to 1-2 to allow writing of new data into the CMOS memory.
CMOS Clearing
Short pin 2-3 for
JU600 Setting at least 5 seconds
to clear the CMOS
Note: You must unplug the ATX power cable from the ATX power connector
when performing the CMOS Clear operation.
Clear Password Jumper (JU601)
Jumper JU601 can be configured to force Password clear.
JU601 Setting
SY-P4RS300 Quick Start Guide
Clear CMOS Data
Normal
Short pin 1-2
13
Retain CMOS Data
Short pin 1-2 to
retain new settings
Clear Password
Short pin 2-3