A simple technique ,can be done if u have an usb port....
Support all types of USB thumb drives. No need to disassemble your PC in order to upgrade its performance. eBoostr gives

your PC a noticeable performance boost without costly hardware upgrades. Just plug one or more flash memory drives, install

eBoostr and say “Yes” to speed up your computer.
Utilize Available RAM Better
Make use of all RAM available. eBoostr features a SuperFetch-like solution and makes use of the otherwise wasted free RAM

to store frequently accessed files and data. Every time you launch you favorite application, it’ll load much faster because

of the preloaded data in RAM. If your computer has over a gigabyte of memory, you’ll see a significant increase in speed

eBoostr™, working as an alternative solution to ReadyBoost and SuperFetch technologies, implements a different advanced approach to use flash memory to speed up your computer
It speeds up your PC and improves application responsiveness by using flash memory and free RAM as an extra layer of performance-boosting cache for your PC. Use up to four inexpensive flash devices to speed up your system. Add more speed to your PC without any hardware upgrade!

* Vista's ReadyBoost benefits on your Windows XP® machine;
* Smart caches frequently used applications and files for maximum performance speed up;
* Supports both USB and non-USB removable media devices, as well as additional hard disks;
* Allows up to 4 devices for simultaneous smart caching;
* Cache file size of up to 4GB on each device;
* Compatible with all ReadyBoost® ready devices.