[SOLVED] HP 630 Notebook PC (Model: A7J87UT#ABA)

Hello.

I was planing to upgrade my HP 630 Notebook PC (Model: A7J87UT#ABA) with a new Processor.
I wanted to use a Mobile Intel Core i7-640M Processor for a Mobile Intel HM55 Express Chipset.
I need to know if this is the highest upgrade (that has built-in graphics).
Right now I have a Mobile Intel Core i3-380M Processor.
If I do decide to upgrade my processor, will my fps (frames per second) increase in videos and games?

Will my PC Over-heat if this processor is being used?

Is there an disassemble and re-assemble guide?

How difficult can it be to replace a processor for a Notebook?

My biggest concern is after I disassemble, will I be-able to re-assemble without a problem.