Abit BX6 User Manual page 26

3-4
Select the CPU speed according the type and the speed of your CPU.
For Intel Pentium
following settings:
ä 233 (66*3.5)
ä 350 (100*3.5)
ä 433 (66*6.5)
User define external clock and multiplier factor:
ä User Define
/ Turbo Frequency:
This item will only be displayed if your CPU external clock
supports Turbo mode.
The Turbo mode allows you to speed up the external clock by
approximately 2.5%. This feature is used to verify the design
flexibility. It is a very important tool for test units to verify CPU
stability. Do not use this feature.
äDisabled: CPU external clock is operating within the normal
äEnabled: CPU external clock is operating within the limits of the
/ Ext. Clock (PCI):
ä 66MHz
ä 100MHz
ä 117MHz* (1/4)
ä 133MHz* (1/4)
ä 148MHz* (1/4)
Note:
1. *Above 66MHz/100MHz bus speeds supported but not guaranteed due to the PCI and
chipset specs.
2. PCI clock = External clock * fraction. For example, when you select 117MHz (1/3), it
means the PCI clock is 39MHz. If you set to 117MHz(1/4), the PCI clock is 29MHz.
®
II/III and Celeron
ä 266 (66*4)
ä 366 (66*5.5)
ä 450 (100*4.5)
limits.
Turbo mode.
(1/2)
(1/3)
®
MMX processors, you can choose the
ä300 (66*4.5)
ä400 (100*4)
ä500 (100*5)
ä 75MHz*
(1/2)
ä 112MHz* (1/3)
ä 124MHz* (1/4)
ä 138MHz* (1/4)
ä 153MHz* (1/4)
Chapter 3
ä 333 (66*5)
ä 400(66*6)
......
ä 83MHz* (1/2)
ä 117MHz* (1/3)
ä 129MHz* (1/4)
ä 143MHz* (1/4)