RAM-ology: An Introduction to PC Memory Upgrades
Everybody always seems to be talking about much RAM a computer has or needs. But, what is it? And how much does your machine really need? This article will give you the full story.
One of the most cost-effective performance boosts you can give your PC is to add more random-access memory (RAM) to it. If you think RAM is something you use to knock down a door or something you can download for free, this article will set you straight.
How RAM Works
Your PC has two types of memory — RAM and the hard drive. Items loaded into RAM are instantly accessible, but items stored on the hard drive are not because the drive head must seek them first. When you start up an application, it loads key portions into RAM so the program will run as quickly as possible. Items in RAM are present until the power is turned off; items on your hard drive stay there whether the power is on or off.
If you only use your computer for Internet surfing, email and simple word processing, the amount of RAM your computer was initially loaded with will probably be adequate. However, if you want to keep many programs open while you are working on a project, need to render graphics, photos and videos, or want to enjoy the latest games without having them slow down, Microsoft recommends adding at least 2 gigabytes of RAM to your computer for the best performance.
What Type of RAM Does Your PC Use?
The most common RAM used in PCs today is DDR SDRAM (double data rate synchronous dynamic random access memory). It comes in three versions: DDR, DDR2 and DDR3; each version is faster and uses less power than earlier ones. DDR is not used today, and DDR2 is being phased out by DDR3. The main thing to know is you cannot mix different types of RAM — a PC built with DDR2 memory can’t support DDR3 memory.
The easiest way to identify the type of RAM your computer uses is to visit the Staples Find the Right Memory page; you can also check your computer’s manual, do an Internet search or look directly at the RAM in your machine.
Determine the Amount of RAM in Your PC
- Windows 7: In the Start Menu, enter the word RAM into the search field and choose “Show how much RAM is on this computer.”
- Apple Macintosh: Open About This Mac in the Apple menu on the top left of your screen and it will say how much and what type of RAM you have.
RAM modules are typically sold in these sizes: 1GB, 2GB and 4GB. Most of today’s computers can upgrade to 8GB of RAM.
Installing RAM
The easiest way to install RAM is to have it done at Staples when you purchase the RAM there. If you decide to do it yourself, follow these general steps:
- Work in a static-free area and confirm that you are grounded at all times.
- Manipulate the RAM modules by their plastic edges. Don’t touch the metal parts.
- Unplug your PC and open its case.
- Locate your RAM module slots. Most computers have two or four RAM slots located on the motherboard, one or more of which may be empty.
- If there is an empty slot, place the new RAM in it. Gently push it into place until the clips lock into it.
- If you need to remove an old memory module, slowly push the clip open and remove the chip. Place the new module in its place.
- Repeat this as needed to install all your memory.
- Close the computer and restart it.
- If the installation succeeded, your PC will start up and you should notice a speed increase when you start and use programs.