Huh??? An Intel FC-PGA 370 pin PentiumIII processor has 32k of Level1 cache, and 256k of Level2 cache (on-die, running at core speed). Note that these are Kilobytes of cache, not megabytes. As far as I am aware, there are no PIII motherboards with specific cache memory onboard (which would effectively become Level3 cache). The only mainstream adoption of Level3 cache that I'm aware of are certain 'Super Socket7' motherboards with certain AMDK6 2 and 3 processors.