PC Computer Power Supply Units (1 product)

It's essential you use the correct power supply for your computer. Whether you're upgrading, building a new set up, or have a broken supply, we have plenty of high-quality, low cost power supplies available at Ebuyer.

Read more about PC Computer Power Supply Units

Showing 1 result
Grid List
  • 1

0-761345-11689-3

£ 82.97  inc. vat

£ 69.14 ex. vat

More Info

0-761345-11689-3

QuickFind: 981604

Mfr part code: 0-761345-11689-3

£ 82.97  inc. vat

£ 69.14 ex. vat

More Info
Showing 1 result
Grid List
  • 1

Return to top

If your power supply doesn't provide enough power for your system, it can cause serious performance issues or system errors. Whether you're building your own PC, or need to replace a faulty power supply, it's important to work out the type and wattage of the power supply you need.

It's important to check the efficiency rating of your power supply; 80%+ efficiency PSUs are a better option, as they waste less electricity, and don't create as much heat inside your system. You should also consider whether you're looking for a modular or non-modular power supply - this will impact the way you build your system, manage cables, and upgrade in the future.

How do I know which power supply I need for a computer?

Which power supply you should buy depends on the components in your computer, and what you use the system for. Generally speaking, you should aim for a power supply that delivers a wattage at least 40% greater than the wattage used by your hardware combined.

You'll also need to consider the processes you use your computer for - your system will work harder when running more demanding programs or games, and therefore will require more power. As a result, gamers and designers will need more headroom than those who use their computers for social media or admin tasks.

What is the power supply on a computer?

The power supply unit (PSU) in your computer converts alternating current (AC) from your plug socket into a continuous current (DC) to run the hardware in your computer. It's essentially the system that provides electricity to your set up, allowing it to power on. A low quality or under-powered PSU will cause erratic performance, and potentially damage your system.

What voltage is a PC power supply?

The power supply itself doesn't have voltage - it converts voltage from the plug socket into a low voltage direct current (DC). In Europe, this is usually around 220-240 volts, and the DC it is converted to will vary.