Things You'll Need:
- A desktop PC
- An Internet connection
-
Step 1
Understand RAM functions. RAM, or random access memory, is the short-term memory in your computer that Windows uses to run all its applications. When you turn off your computer, the RAM is emptied. RAM is separate from your hard drive, which is the long-term memory for storing your files.
-
Step 2
Identify what kind of memory is compatible with your computer. There are two major types, DDR and DDR2, and both of these come in a number of speeds. If you purchase memory that runs faster than your computer can handle, it will automatically set itself to run slower, but this is less cost-effective than purchasing the right speed for your computer. DDR is an older standard common in computers dating from 2000-2002, while DDR2 is newer and easier to find.
-
Step 3
Determine how much memory you need. For most users with Windows XP, 1 GB of RAM should suffice. If you spend a lot of time playing games or editing music or movies, or if you use Windows Vista, 2GB is recommended.
-
Step 4
Know your limits. If you are running the standard versions of Windows XP or Windows Vista, your computer will only recognize about 3.2 GB of RAM, and anything above that will be ignored. Only 64-bit versions of XP and Vista can recognize more than 4 GB of memory.
-
Step 5
Find a reputable retailer. Like most computer components, RAM can be found for much cheaper online than in brick and mortar stores. If you are uncomfortable purchasing online, large electronics stores carry a variety of memory options for your PC.
-
Step 6
Buy in pairs. Due to the way motherboards are designed, RAM runs faster when installed in matching pairs. If you're buying 1 GB and don't plan on upgrading later, get it in the form of two 512-megabyte modules. If you're getting two gigabytes, go for two 1 GB modules.
-
Step 7
Install it. RAM is the single easiest computer component to replace. Simply find the corresponding ports, of which there are usually two or four, and snap it in.
