Bios Mods -The Best BIOS Update and Modification Source

i want to upgrade my hp g6 1048se which has an i3 380m cpu to an i7 640m and i wanted to know if such upgrade is possible and if it needs a modded bios to work before i buy the cpu
thanks ahead

i also found the service manual for the laptop but i couldnt find much details regarding my specific variant as it uses an hm55 chipset and the rest of the variants mentioned uses hm65
http://h10032.www1.hp.com/ctg/Manual/c02968997.pdf

i3-380M and i7-640M use the same microcode. Modded BIOS isn't needed.

(08-31-2016, 12:08 PM)DeathBringer Wrote: [ -> ]i3-380M and i7-640M use the same microcode. Modded BIOS isn't needed.

thank you very much for confirming
do you mind telling me whats the highest end cpu that i can install without modding the bios ?