Bios Mods -The Best BIOS Update and Modification Source

hey guys i want to know if i can upgrade my cpu any further in the above laptop

i have upgraded it from a T2050 to a T2130 i want to know if i can go any further speed wise ?

i know its a socket mpga479

i have looked around and there are a few that i think would fit like the

T5600

or the

T9400

but i dunno if the chipset would be compatable ?

any advice guys would be appreciated

thanks

jason