Power supply units of most computer hardware parts are coming attached to a high number of stories, half truths and downright misleading conceptions. While most of the average users do not need to go too deeply into the hardware components of their computers. But, there are some that are interested in doing so and while they may be well intentioned they inadvertently start rumors, stories and so on. One of the most widespread misconceptions out there is that a higher power supply unit will automatically mean a higher energy consumption and of course a higher power bill.
The biggest myth of the entire power supply unit (PSU) delivers exactly the power needed by the computer system, sometimes less but certainly nothing more. Most power supply units are rated to a certain number of watts, let’s say for argument’s sake 500W, but while this is the maximum power output of the unit, if the computer’s power requirements are below that figure, let’s say 350W, than the PSU will deliver only 350W and not 500W as that additional power will most likely destroy the hardware components. This is not meant as a downplay of the powerful power supply units, as such units are needed when building computers with a lot of computing power, which is generated by a powerful and power hungry central processing unit, a high energy intensive graphics card or several hard disk drives. One of the most overlooked characteristics of a power supply unit is its rated efficiency, which means how much of the electrical energy is wasted away as residual heat. A higher efficiency rated PSU may cost more but in the long run users can expect to actually save money as less energy is wasted.
Related posts:
