6
Technical Reference Booklet
Jumper Settings
This chapter explains how to configure the motherboard’s hardware. Before using your
computer, make sure all jumpers and DRAM modules are set correctly. Refer to this
chapter whenever in doubt.
CPU Speed Selection
In this motherboard, jumperless feature is implemented such that no jumper is required to
be set for different type of CPU installed.
Notice:
1.
Be sure to save the CMOS setting when exit the CMOS.
2.
The CPU is frequency multiplier locked, no CPU speed change will be seen
even if the frequency multiplier setting in CMOS setup is changed.
CK1, CK4 - System Bus Frequency
CK1
CK4
CPU Clock Speed
Open
Open
133MHz
Open
Close
100MHz
Close*
Close*
Auto*
EDS1 - On Board AC97 Codec Sound
EDS1
Function
2-3*
AC97 Sound Enable*
1-2
AC97 Sound Disable
JBAT - CMOS Clear
JBAT
Selection
1-2*
Normal*
2-3
CMOS Clear
JVSB1 - Keyboard Power Select
JVSB1
Select
2-3*
Powered by +5V*
1-2
Powered by +5V Standby
(Allows Keyboard Power On)
CK1
JVSB1
1
JBAT
1
1
Close Open * = Default setting.
EDS1
CK4
1
1
1
1
1
1