Dell laptop D530 with T7500 processor: what's the fastest processor upgrade?

"Intel® Core™2 Duo Processor

Up to T7700 (2.40 GHz, 4 MB L2 Cache, 800 MHz FSB).

Source"

"Me thinks you've just answered your own question.

Notebook processors are usually soldered to the board, and non-upgradable. Even if it were
possible with severe desoldering and hacking, the availability of mobile processors and the extreme chance it will b0rk your entire system makes it dangerous and non-feasible."