Random access memory (RAM) is temporary storage space that the computer uses to help process tasks. The information stored in RAM is used as needed while the computer is running and is lost when the computer is powered off. This works differently than hard drive space which stores files indefinitely until they are deleted. Operating systems and programs have minimum requirements of RAM and usually function faster when more is available.

RAM Selection

There are many tools available to help select the correct RAM for your computer. The computer manual is the best place to start to ensure the tools are providing accurate suggestions. Computer hardware is a competitive market so comparing prices is also advantageous. When selecting a new RAM card, be aware of the type of memory that is involved. Static RAM is faster than dynamic RAM because the information in it does not have to be constantly refreshed, but it is more expensive.

Locating the Slots

To add RAM to a desktop computer, you will need to open the case and locate the motherboard. This will be a large circuit board, usually along the back away from the opening. The RAM cards will be about 5 inches long and 1 inch wide. There will usually be two slots right next to each other. Most slots have a lever on one side that locks the card into place. You would press that lever down to release a card and press a card into it to lock it. On a laptop the slots will be inside a panel on the bottom. The panel needs to be unscrewed and the slots will be lying at an angle. The RAM cards for laptops are smaller, usually about 3 inches long.

Configuration

The motherboard with usually have two slots for RAM cards. It is generally better to have one large RAM card than two smaller ones to decrease the need for communication between them. The computer manual will provide specific instructions on the type of RAM that is compatible and the limit of the size for each slot. If you are using multiple cards, they should ideally be the same type and speed. Most operating systems will not utilize the full potential of a card if it is running in conjunction with a slower one, they will all run at the slowest one's speed. If the motherboard has multiple slots they should be filled consecutively.

Source:

Microsoft

RDRAM Rambus Memory

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