Personal Computer Memory - 5 Tips on How to Choose RAM For Your PC Build

When choosing RAM or "Random Access Memory" for your PC build, you will be guided mostly by your choice of motherboard. However, to ensure you make a good choice, read the following tips.

1. Understanding RAM

To begin with, it helps to understand the role of RAM in a PC. RAM is "volatile" memory which means that it is only used by the operating system and applications when the PC is switched on and running.

When the PC is switched on and has booted, the operating system is partially loaded into RAM together with applications and data as required. This is because the processor (CPU) can access RAM much more quickly than the magnetic or optical drives where software is stored.

When programs are terminated they vacate the RAM, as does windows when the PC is shut down.

2. Types of RAM

At the time of writing, the major types of RAM are DDR2 and DDR3. DDR3 runs at a higher clock rate than DDR2 but this does not necessarily mean that it is faster memory. Your motherboard specifications should tell you which type it will accept and how much. If the board accepts DDR3 then buy this because it will help to future proof your PC and it is no more expensive than DDR2.

RAM is available at different speeds. If it can run faster than your PC will allow, it will simply default to a lower speed. If you have thoughts of upgrading in the future however, it may be wise to go for a higher speed which will be more expensive but not by much. Faster RAM may also afford you greater reliability because it is more highly specified. It will also allow you to experiment with overclocking if that is your desire.

3. Amount of RAM required

The amount of RAM you will require depends on how you intend to use your PC. If you play modern games, process digital images, or run a lot of applications simultaneously then you should be considering 4Gb or more.

However, it must be realised that if you are running 32 bit windows, then your PC will only recognise 3.2Gb. To use more than this you need to be running 64 bit windows.

4. Single or Pairs

If you are going to use 4Gb (for example) of RAM then buy it as a pair of 2Gb modules. Motherboards run matching pairs of RAM modules faster than a single module. You can of course use a single module which may allow you to ultimately fit more RAM on to your board.

5. Quality

This is very important. Always purchase premium brand memory. Do not buy generic RAM. A good brand will ensure reliability and durability. You can also be sure that premium RAM will run at rated speeds.