Quote:
| and most likely a lot of ppl from CompUSA just don't know how to open your laptop haha |
Ouch!

Anyway, it depends entirely on the notebook. For example, ECS' notebooks, while not always the most reliable machines, are mostly completely modular. They allow you to upgrade the HDD, RAM, CPU, etc. quite easily. In fact, it appears to be even easier than doing so a desktop. There are a few other manufacturers that also make it fairly straight-forward to upgrade a CPU easily (ie.: they put it into a separate, easy-to-access compartment), but they are few and far between.
Some manufacturers, such as Dell or IBM, give detailed instructions in their manuals on upgrading the CPUs in their notebooks, but you practically have to take the entire notebook apart to do so.
For the most part, in most, if not all, recently manufactured notebooks, it is physically possible to upgrade the CPU. However, be careful as this will usually void any warranty on the notebook
