Memory Problems

My computer does not recognize any memory cards i put in there. I have tried at least three of them. Does anyone know how to fix the problem?

When you say memory cards, which of the following do you mean:] A.

= B.

=

C.

NOTE: A or C may not fit in your computer.

What kind of processor do you have? If you've got an AMD you might need to change your processor as well as your RAM. (AMD motherboards provide for a higher FSB by removing Intels little chip that can translate RAM types).

Or do you mean USB? Or RAM? There are different types of ram…

I mean RAM. sorry about that.