Join Empire23 as he goes through the intricacies of the memory module and breaks it down into the key issues you need to know before you pick up a new memory upgrade. If this can be challenging to even seasoned PC hardware enthusiasts, it can be quite impossible for a newbie.
"Frankly, the performance of your memory modules does not really matter unless you are into hardware tweaking and/or overclocking. The performance difference between different memory modules is really insignificant. It is certainly far less important than the quantity of RAM. It's better to have lots of slow RAM than a smaller quantity of faster RAM."
Check it out at TechARP.