How to Test a Computer Power Supply Using a Voltmeter. The power supply on a computer transforms the alternating current from the wall outlet into a direct current flow that the computer's ...

How to Test a Dell Power Supply. Computer power supply units are designed to both power your computer's components and protect them from minor surges. But too large of a surge will blow a PSU's ...

Try a different power cable and wall socket to make sure neither is dead. Check all internal connections inside your PC, especially power connectors to peripherals.

How many Watts does your computer use? These Power Supply Calculators will help you measure your PCs total power consumption & calculate the energy use.

Power supplies are a frequently misunderstood—and overlooked—PC component. Many users choose a PC power supply based on total wattage alone, assuming that higher is always synonymous with better.

Whether you're upgrading your desktop PC or building one out from scratch, here's what you need to know about finding the right PSU, including standards, form factors, and cabling.

The power supply is the beating heart of your gaming PC, the part that circulates the vital life-blood of power around your expensive processor, motherboard, and graphics card.

There are a lot of components to consider in your PC. So what size power supply should you get to provide juice for them all?

So you’re building a gaming PC for the first time—or maybe you’re building a certain kind of gaming PC for the first time—and you want to be sure you get the right power supply for it ...

The power supply isn’t like other components in your computer, bigger is actually better. Here’s how to figure out how big a power supply you need.

Whether you're upgrading your desktop PC or building one out from scratch, here's what you need to know about finding the right PSU, including standards, form factors, and cabling.