Several hard w a re settings are made through the use of jumper cap to connect
jumper pins on the motherboard. See motherboard layout on page 1-8 for
location of jumpers. The jumper settings will be described numerically such as
'1-2', '2-3' or 'On(Short)', 'Off ( O p e n ) ' .
1. Processor Core : BUS Frequency Multiple
To install the processor at its correct fre q u e n c y, Please refer the following table
to set up processor fre q u e n c y.
Table 2-1. Pentium II/III or Celeron processor Frequency settings
2. Clear CMOS RAM(JP7)
The CMOS RAM is powered by the onboard coin-cell battery or power supply.
To clear the CMOS Data : (1) Turn off your computer and plugged out your AC
power cord from a wall socket, (2) Close pins 2-3, wait five seconds and place
the jumper back on pins 1-2. (The jumper must be placed back on pins 1-2 for
the system to function properly), (3) Turn on your computer.
CB650M-BX Mother Board
2 - 2
Set Jumpers
F r e q .
2 6 6 M H z
3 0 0 M H z
3 3 3 M H z
3 6 6 M H z
4 0 0 M H z
3 5 0 M H z
4 0 0 M H z
4 5 0 M H z
5 0 0 M H z
C l o c k
M u l t i p l i e r
4
4 . 5
5
5 . 5
6
3 . 5
4
4 . 5
5
H o s t
C l o c k
6 6 M H z
6 6 M H z
6 6 M H z
6 6 M H z
6 6 M H z
1 0 0 M H z
1 0 0 M H z
1 0 0 M H z
1 0 0 M H z
J P 1
O n
O n
O n
O n
O ff
O n
O n
O n
O n
J P 2
O n
O ff
O n
O ff
O n
O ff
O n
O ff
O n
J P 3
O n
O n
O ff
O ff
O n
O ff
O n
O n
O ff
J P 4
O ff
O ff
O ff
O ff
O n
O n
O ff
O ff
O ff
CB650M-BX(1,2¿Â) 00.5.12 2:8 PM
∆
‰¿Ã¡ˆ2-2
