Computer Memory Buying Guide: How to Buy the Right RAM for Your Computer

It is important to choose the right kind of memory (RAM) for your computer. Choosing the wrong size, bus speed, amount, or type will leave you with RAM that will not work in your computer. RAM is short for Random Access Memory.

Considerations when choosing memory for the computer include finding the right type and size of RAM, the maximum amount the computer can use, and the requirements of the operating system and programs that you plan on using on your computer.

The more RAM that is installed in your computer, the greater the ability to multitask, run memory intense programs, and run programs with greater speed.

Determine what type of RAM that your computer or laptop takes. Some types of RAM include, DRAM, SDRAM, DDR SDRAM, or RDRAM. This can be determined by checking your computer's user manual or looking up "System" under Control Panel in Windows or "About this Mac" under the "Apple Logo" in OSX.

This is important because a particular computer will only utilize and work with one kind of RAM. If you purchase the wrong kind, it will not work with your computer and could cause damage to your computer.

RAM Size.
Check the physical size of your RAM modules. RAM for a laptop computer for example is generally smaller than RAM for a full size desktop computer. You can shop by computer brand to determine which size module that your computer can hold. Many websites offer this service, some are included in the Resources section. These websites will also tell you which kind of RAM type is used in your computer.

Memory Speed.
Look to see the maximum amount of frontside bus speed that your computer is utilizing. You can see this under "System" in the "Memory" section. The bus speed is measured in Mhz and may read something like "1067mhz". Purchase RAM that can run at the same bus speed to get the most out of your new RAM.

Maximum Amount of RAM.
Purchase the maximum amount of RAM that your computer can utilize. Look in the computer's manual or check the Specs section of the computer description when purchasing or looking up the computer's information. Usually this is listed as the amount of RAM currently installed, followed by "expandable up to X amount of RAM", "X" being that amount.

Buying the maximum amount of memory that your computer can handle should be done because you will get the most value out of your RAM upgrade.