Do not change any jumper setting while the computer is on. Damage to the motherboard can result.
Clear RTC RAM (3-pin CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in
CMOS. You can clear the CMOS memory of date, time, and PC
setup parameters by erasing the CMOS RTC RAM data. The RAM data in CMOS, that include PC
setup information, is powered by the onboard button cell battery.
Turn OFF the PC and unplug the power cord.
This motherboard has a jumper to clear the BIOS settings in CMOS RAM.
To clear BIOS settings, temporarily set the jumper labeled "CLEAR CMOS" to pins 1-2.
Wait at least 6 seconds and then return the cap to pins 2-3.
When you start the PC you will need to enter BIOS setup to reset any custom BIOS settings.
Except when clearing the RTC RAM, never remove the jumper from the
default position. Removing the jumper causes PC startup failure!