Its possible, but highly not recommended to fiddle with a laptop processor. Too much work
Within ur 5000 series, the T5300 (2M Cache, 1.73 GHz, 533 MHz FSB) looks highly compatible with ur mobo, but its not worth upgrading to.
However, if u find that ur mobo supports chips with a 666MHz FSB, then there a whole lotta chips u can upgrade to