Laptop's are in the most part unupgradeable, you can change the RAM, hard drive and screen (if it breaks, of course you can't change it to a larger or smaller size). Some laptop's still actually have their processors soldered into the motherboard making the upgrade impossible. While this may or may not be the case for your laptop/notebook changing the processor will change the heat output thus making the laptop hotter. Now lays your problem, your laptop was specifically designed to cool your laptop for the hardware that it was sold with, thus adding new hardware with greater heat output will result in overheating and possible crashes and/or breaking your computer.
Same thing applies to overclocking laptops, they aren't designed to cool any more then they need to, simply because the laptop manufactures don't want to make it larger (better cooling generally translates into larger materials) and louder.
In short, I highly recommend against any processor upgrades and strongly recommend you don't overclock your laptop.
Edited by james_8970, 26 August 2007 - 04:45 PM.