Fixing up a computer may seem like a daunting task. However, it is relatively straightforward. The key component in any computer is the Central Processing Unit (commonly known as the CPU). It is the component that is responsible for the primary calculations and the programs that the computer runs. An old or slow CPU can seriously hamper a computers usefulness.
When looking to upgrade or repair a computer by updating the CPU, there are a couple of things to look at. First, it is important to know the number of cores that the CPU is made of. Second, the speed at which the CPU runs, commonly listed in Ghz. When running programs such as games or video editing software, they will list the required specifications for these two measurements, so it is also important to know what your program requirements for your CPU are. Generally speaking, the faster the speed, the quicker the CPU is able to run programs and the more cores a CPU has, the more processing power the CPU has.
The easiest thing to say is that the more of anything the better, but when it comes to the CPU that is not always the case. The way in which you plan to use the computer can also help dictate your CPU choice. The more powerful the CPU the more power hungry it will be. For a general computer that might be used by the family for internet searching and mail but not much more, a mid-level CPU would work just fine and would save on power. Some computers used as Home Theater PCs (HTPCs) will also need a lower power draw from the CPU because they are designed to be left on constantly. A six-core CPU drawing 140 watts would not be very economical in this situation.
So, when looking to fix up your computer and you want to take a look at the CPU, remember to know what you (or your programs) need from the CPU and how often you are likely to be using it.
