is this fast enough to catch the motherboard frequency???

[wefixpc]

http://home.skif.net/~yukol/FMeng.htm

TIA

 

[mc]

http://home.skif.net/~yukol/FMeng.htm

It says it goes up to 5 MHz on digital signals. So it will measure the CPU
clock of a 1981-model IBM Personal Computer. Today's fast PCs are about
2500 MHz (2.5 GHz).

A further problem is that as I understand it, in today's fast CPUs, the
high-frequency clock signal exists only inside the CPU chip. It is
multiplied from a lower-frequency signal outside. Am I remembering
correctly?

 

[Ray L. Volts]

It says it goes up to 5 MHz on digital signals. So it will measure the
CPU clock of a 1981-model IBM Personal Computer. Today's fast PCs are
about 2500 MHz (2.5 GHz).

A further problem is that as I understand it, in today's fast CPUs, the
high-frequency clock signal exists only inside the CPU chip. It is
multiplied from a lower-frequency signal outside. Am I remembering
correctly?

Yep, internal clock frequency isn't the same as the bus frequency from the
cpu to the outside world. You're a little behind the times at 2.5GHz,
however. The latest desktop Pentium 4, for example, has a 3.8GHz clock.