Building a PC isn’t difficult, but some care is needed when working with electronic components. Prepare a large working area, clear of any clutter and with a non-conductive surface. Static electricity can kill electronic components, and it can build up on your body without you noticing, until you pick up a component and zap it. You can avoid this by earthing yourself to discharge and static build up.
The simplest way to do this is to touch a grounded object, such as a central heating radiator or the kitchen sink before touching a component. You can also buy anti-static wrist straps that connect to a grounded point by flexible cable to keep you static free during your build. The computer you build will not have a warranty, but the individual components will. As long as the fault wasn’t caused by damage while fitting them, any reputable vendor will replace them.
Memory is one of the simplest ways to boost the performance of a modern computer. It enables more tasks and data to be handled at once and any memory that’s left over is used by the Linux kernel to cache disk data which, incidentally, is why your computer shows almost no memory free after it has been running for a while.[caption id="attachment_89" align="aligncenter" width="842"] Memory may seem unassuming, but it has a greater effect on the performance of your computer than many other components.[/caption]
There are three things to consider when buying memory, the physical layout, the size and the speed. The current memory standard is DDR3 and DDR4. Don’t try to fit the older DDR or DDR2 sticks into these slots, they are incompatible.
Size is obvious, and it is worth getting the most your budget allows. Check your motherboard’s manual for the maximum size for each slot because, although the spec allows for up to 16GB per DIMM, most Intel systems are limited to 8GB per unit. Motherboards usually use a dual-channel architecture for memory, so fit sticks in pairs and check the manual to see which slots go together.
This is unnecessary if you are filling all four slots, but unless you are using the maximum size stick, it is better to use two larger sticks. If you want to fit 16GB of RAM, two 8GB sticks give you the option of adding more later, four 4GB sticks does not.
It used to be that the only question to ask about a hard drive was: How big? Now we have to add: How many? And what type? The choice of type is mainly between traditional hard drives with spinning platters and solid state drives (SSDs).
(Although there are also hybrid drives that use a spinning disk with an SSD as a cache.) SSDs are much faster than hard drives but cost a lot more per gigabyte, a 256GB SSD costs about the same as a 3TB drive. So an SSD gives much faster booting and program loading but a hard drive holds much more. An SSD also uses less power and is more robust, making it the obvious choice for a laptop when you use it on your best mattress for side sleepers.