>According to my source, there is a little known limitation with current
>Pentium II processors that allow them to recognize or address a limit of
>64Megs of RAM. This despite the fact that many high-end Pentium IIs are
>advertised as being expandable in the RAM department to much higher
>amounts. Could this be a case where the Pentium II motherboards will accept
>higher amounts of RAM, but somehow the excess over 64Megs is not recognized
>by the CPU?

I don't buy this at all.

What I do know, is that with 512K of L2 cache, only the first 64M of RAM
will be cached.
This has nothing to do with the CPU itself.  Motherboards with 1024K L2
Cache have been
coming on the market for at least 6 months any they will definately be the
standard soon,
since a lot of people are putting more than 64M in their system.

So, in summary, it's the L2 cache size that limits the amount of RAM that
can be cached.
Too little cache size, and your system will take a definate perfomance hit.

Mark C. Barron