IWILL VD133, Manual, Page: 74 / 80

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VD133 Pro Series
Chapter 5 BIOS Setup
e g n a h c t o n n a c u o y t u b , m a r g o r p p u t e s S O I B r e t n e o t u o y s w o l l a d r o w s s a P r e s U e h T
. e c a l p e f a s n i d r o w s s a p r u o y p e e k e c a l P . s d l e i f y n a f o e u l a v e h t
5.14 Save & Exit Setup
Saves current CMOS value and exit BIOS setup program.
5.15 Exit Without Saving
Abandons all CMOS value changes and exits BIOS setup program.
Appendix
CPU FREQUENCY SETUP
In general, when adjusting the CPU frequency, you should select a matched bus frequency for
both the CPU and the motherboard. The reason is that your
CPU can only communicate with its external components at the same speed at
which the components operate. In other words, if your motherboard bus speed
is 100 MHz, you should start by selecting 100 MHz (as a “base”) to set the
CPU frequency. This frequency is also referred to as the “system bus
frequency” or external frequency.
To understand how does CPU works , and how does it related to FSB and multiplier, here is the
example:
CPU speed = FSB x Multiplier (CPU Ratio)
800Mhz = 100Mhz x 8
How to setup CPU frequency in IWILL Smart Setting
IWILL provides a triple stepping system bus selection in VA series motherboards. It allows
user to select various FSB speed ranging from 66MHz ~ 166Mhz. This section will describe
how does this works.