Hardware Installation - SOYO SY-KT400 Dragon Ultra User Manual

Hardware Installation

Changing "CPU to PCI Divider".
Once the frequency of the CPU is changed, the next (most important) thing
to do is to change the "CPU to PCI Divider". The purpose of the divider is to
allow the PCI bus to run at the standard "33MHz" or close to the standard
PCI bus speed. Here is the table to show the recommended divider to pick
associate with the frequency.
CPU/PCI Divider Table
CPU FSB (MHz)
CPU/PCI divider
PCI BUS (MHz)
The most safe range for the PCI bus is between 30 ~ 37.5 MHz.
Changing "CPU ratio" (Multiplier)
The ratio (or multiplier) of the CPU can be changed depends on the CPU.
Some CPUs are "unlocked", which mean the ratio can be changed through
the BIOS settings. Some CPU ratio can be higher or lower than the
predefined value. Other can only be set to lower than the predefined value.
System Performance
CPU Frequency Mode
Frequency 1MHz Stepping
CPU To PCI Divider
DRAM:AGP:PCI Clock
DRAM Clock
CPU Ratio Select
CPU Voltage Select
DDR (2.5V) Voltage Select
AGP (1.5V) Voltage Select
Advanced Tune-up Settings
C.I.H. 4-WAY Protection
Onboard 6Ch H/W Audio
100~119 120~133
3 4
33 ~ 40 30 ~ 33
Phoenix – Award BIOS CMOS Setup Utility
SOYO COMBO Feature
Normal
Manual
100
/3
SPD: 66: 33
133
Auto
Default
Default
Default
Press Enter
Disabled
Enabled
SY-KT400 DRAGON Ultra
134~149 150~166
4 5
33 ~ 37.5 30 ~ 33
Menu Level
41
161~200 200~255
5 6
33 ~ 40 33~42.5
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