Cybenetics offers ETA and LAMBDA certifications, evaluating PSU efficiency and noise output. ETA rates PSUs not only based on efficiency but also on power factor, 5VSB efficiency, and vampire power.

The venerable ATX standard was developed in 1995 by Intel, as an attempt to standardize what had until then been a PC ecosystem formed around the IBM AT PC’s legacy. The preceding AT form factor was ...

In brief: New, higher energy efficiency ratings have gradually emerged for top-tier power supply units (PSUs) over the years, and new workloads have encouraged standards to continue increasing. In ...

Users in industrial control and info-communication fields are placing growing importance on the durability and reliability of power supplies. However, legacy power supply units (PSUs) are facing ...

A 750W PSU (gold rated) only needs to clear 87% efficiency at 20% (150W, close enough for you) so it would draw ~195W, or 6W more than our mythical 340W PSU. If you're running at 220V then the savings ...

As an Amazon Associate, we earn from qualifying purchases. TweakTown may also earn commissions from Newegg and other affiliate partners at no extra cost to you. DeepCool recently announced the PXG ...

As an Amazon Associate, we earn from qualifying purchases. TweakTown may also earn commissions from other affiliate partners at no extra cost to you. SFX PSUs in small-form-factor PCs are now standard ...

Testing a modern power supply can be challenging without access to professional electronic load equipment. Without dedicated load testers, it is difficult to apply controlled, repeatable high-current ...