Merom in a Penryn Motherboard

[sparta.rising]

Would a Merom Socket P 800 FSB processor work in a motherboard that originally came with a Penryn Socket P 1066 FSB?

Specifically, a T7500 when the laptop came with a P8600 (original processor unavailable).

Could it be pin-modded?

[ajkula66]

I've never tried that swap myself, but all of my experience is telling me that it wouldn't work.