My Dad wants me to put 128 MB of RAM into his Dell Dimension XPS b800r. What kind of RAM goes in this kind of computer? How would I find out?

How long does RAM actually last? Well, it depends! You've got to consider factors such as usage and load, quality of components, and much more.

DDR, DIMM, XMP, CAS ... Confused? No problem -- our RAM buying guide will help you demystify this once and for all so that you can make your PC run great.

Knowing what kind of laptop you have is essential for troubleshooting issues and finding the right support.