AMD KT600, User Manual, Page: 23 / 94

Installation
Page 3-5
3-2 Jumper Settings
JCK1/
JCK2:
JCMOS:
Settings:
1-2: Normal (Default)
2-3: Clear CMOS
Clear CMOS data Jumper
If the CMOS data becomes corrupted or
you forgot the supervisor or user
password, clear the CMOS data to
reconfigure the system back to the
default values stored in the ROM BIOS.
1
1
CPU FSB Select Jumper
This jumper is used to select the front side
bus of the CPU installed on the mainboard.
JCK1 JCK2 Settings:
1-2 1-2 By BIOS (Default)
2-3 1-2 133MHz
2-3 2-3 166MHz
1-2 2-3 200MHz
Note: Overclocking may cause system instability and
are not guaranteed to provide better system
performance.
To CMOS Clear data, please follow the steps below.
1. Turn off the system.
2. Change the jumper from “1-2” to “2-3” position for
a few seconds.
3. Replace the jumper on to the “1-2” position.
4. Turn on the system and hold down the <Del> key
to enter BIOS setup.
JCK2
JCK1
CAUTION !
If you change JCK1 and JCK2 back to default settings,
you must use the Clear CMOS function, or else the
system will not boot-up.