Upgrading notebook

[jdtdwp]

I've had my notebook for about two and a half years now and its starting to run slow and lag often. I noticed that the cpu usage when just browsing the internet is around 50%, when watching a movie around 70%, and when playing a video game or using a big program around 90%. The notebook has a relatively slow cpu speed (1.2GHz). Is it possible to put a new cpu in my notebook without replacing the motherboard as well? It also has 4gb of RAM which I am going to upgrade to 8gb soon. I don't really have money to buy a brand new notebook so I was just looking for ways to upgrade my current pc. Any help would be greatly appreciated! Thanks!

 

[mjf]

I'm not answering your specific question. I personally would wait until I could afford a full notebook upgrade.
But these tips may help your performance:
http://www.sevenforums.com/tutorials/11728-optimize-windows-7-a.html

At the risk of being strung up, one of Windows 8 virtues apparently is to help low power PCs performance.

 

[gregrocker]

Follow these steps to to get a perfect Clean Reinstall - Factory OEM Windows 7 which is normally better than getting a new PC considering how much crap that comes preinstalled.