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, if jumperless feature is implemented, 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.
Celeron PGA370 CPU is frequency multiplier locked, no CPU speed
change will be seen even if the frequency multiplier setting in CMOS
setup is changed.
JP52, JP55 - Host Bus Speed Select
JP52
JP55
Host Bus Speed Select
Open
Open
133MHz
Open
1-2
100MHz
Close*
1-2*
Auto*
JP7 - Ratio of Processor Core to System Bus Frequency
Ratio
JP7
Ratio
JP7
Ratio
JP7
3
5
7
3.5
5.5
7.5
4*
6
8
4.5
6.5
--
JP4 - CMOS Clear
JP4
Selection
1-2*
Normal*
2-3
CMOS Clear
JP55
JP4
1
1
1
1
1
JP52
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
*
Close Open
* = Default setting.
JP41
2
1
1
JP8
JP7
