Manual for BA1 series
Chapter 2
Clear CMOS (CLR_CMOS)
If you want to clear CMOS, unplug the AC power supply first, close CLR_CMOS (pin1 &
pin2) once, set CLR_CMOS back to the normal status as pin2 & pin3 connected, then
power on the system.
Jumper Settings
Jumpers are located on the mainboard, they represent, clear CMOS jumper CLR_CMOS,
enable BIOS Protection function jumper BIOS_WP etc. Pin 1 for all jumpers are located on the
side with a thick white line ( Pin1
→
), refer to the mainboards silkscreen. Jump-
ers with three pins will be shown as to represent pin1 & pin2 (1-2)connected and
to represent pin2 & pin3 (2-3)connected.
3-pin
2-pin
set pin1 and pin2 closed
Symbol
Jumper
set the pins closed
set pin2 and pin3 closed
set the pins opened
Description
1-2
2-3
close
open
Represent
Normal status:
(Default)
Clear CMOS:
(Unplug the AC power supply )
CLR_CMOS
1 2 3
1 2 3
