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--- Satya <[EMAIL PROTECTED]> wrote:
I suppose that's the system oscillator. Nothing
> would work without that.
--------
Noo that is not the system clock. The system
clock (ISA) is 14.31818 MHz. The CPU clock is
usually a 100MHz xtal (which is multiplied by a
PLL to the CPU speed and divided for the system
bus)and the system bus clock is derived either
from the 100MHz xtal (+ chipset logic) or CPU and
is selectable in rom bios chipset options. The
bios clock is derived from the 14.31818 Mhz xtal
and is divided by the 8253 timer chip embedded in
the chipset. If this clock is broken your Multi
tasking system wont work (dos will work) cause
there will be no hardware timer interrupt.
Rgds
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