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Power Supplies

The power supply unit (PSU) is the primary source of electrical power for all other hardware components. It converts alternating current (AC) from your wall outlet into the direct current (DC) that your PC parts require. A typical PSU provides multiple voltage rails, including 3.3V, 5V, and 12V, each serving different components within your system. For example, the 12V rail is crucial for powering your CPU and graphics card, while the 5V rail might supply power to hard drives and other peripherals.

Power Supplies

RX 9060 XT Wattage & PSU Guide

So, you’re getting an AMD RX 9060 XT? Great choice! It’s definitely the best card around the $300 mark in 2025. You can make another good decision by not overpaying for a new power supply....

Bob Giovanni

August 7, 2025

RTX 5070 Ti Wattage & PSU Guide: Do You Need an Upgrade?

The power requirements for Nvidia’s RTX 5070 Ti are a bit higher than the non-Ti model. You’re looking at 300W of power draw compared to the RTX 5070’s 250W TDP – and a smaller...

Bob Giovanni

March 16, 2025

Power Supplies

PSU Failure Symptoms: How to Recognize the Warning Signs

Power supply units (PSUs) are the unsung heroes of our PCs, silently providing the needed energy to keep your apps and games running smoothly. However, like any component, PSUs can fail over time, pot...

Bob Giovanni

February 2, 2025

Power Supplies

What’s a PCIe 5.0 PSU (power supply)? Here’s what you need to know

Recently, the world of power supply units (PSUs) changed for the first time in ages with the introduction of PCIe 5.0 and ATX 3.0 technologies. But what does it mean and do you really need to upgrade?...

Bob Giovanni

December 30, 2023