Abit BX6 User Manual page 18

2-10 Chapter 2
CCMOS 1 : CMOS Discharge Jumper
Jumper CCMOS discharge CMOS memory. When you install the motherboard,
make sure this jumper is set for Normal Operation (1-2). See the jumper below.
Setting CCMOS
Normal Operation
(Default)
Discharge CMOS
Note: Before you clear the CMOS, you have to turn the power off first (including the +5V
standby power). Otherwise, your system may work abnormally or malfunction.