Power Supply

A PSU is the Power Supply Unit for your computer. The average PSU nowadays ranges from 450W up to and above 800W. If you are ordering a powerful computer, for example a Core i7 CPU, 8GB+ RAM and a High-End Graphics Card, we seriously recommend you choose a more powerful Power Supply Unit with advanced CPU cooling fan. They may add a small amount to you order, but it will make your computer more reliable, efficient and increase the overall lifespan of your PC.

Each component in your computer uses a proportion of your power supply's power output capabilities. As a rough guide, the following components use:

ComponentPower
Mid-Range Processor110W
RAM5W (Per Stick)
Low-End Graphics Card85W
Mid-Range Graphics Card150W
High-End Graphics Card350W
Hard Drives25W each
Optical Drives30W Each
PCI Cards (e.g Wireless Card)7W (per card)
Motherboard40W
Cooling Fans10W
Floppy, Keyboard & Mouse10W


If you look at our Graphics Card info page, the table shows what the minimum recommended Power Supply is for each Graphics Card.

* Images are for illustration purposes only.