Noise and Ripple can easily be measured by an oscilloscope. These show how much voltage fluctuation there is on a particular rail. We tested the rail stability of the 3.3 volt, 5 volt and 12 volt rails using an identical time and millivolt scale for all graphs. millivolt ripple is measured by the peak to peak size of the voltage curve.
The latest ATX 12 volt version 2.3 specifications state that ripple from peak to peak must be no higher than 50 millivolts for the 3.3 volt and 5 volt rails, while the 12 volt rail is allowed up to 120 millivolts peak to peak to stay within specifications. Millivolt figures are stated to the closest increment of 5 given their variability.
Load (%) | 3.3V Ripple | 5V Ripple | 12V Ripple |
20 | 2.8 | 4 | 4.4 |
40 | 3.6 | 3.6 | 5 |
60 | 4.2 | 5 | 6.6 |
80 | 4.2 | 5 | 7.4 |
100 | 5 | 5.5 | 8.2 |
The ripple performance may be the best we’ve ever seen! Those figures are so low, it’s likely going to be a long time before we see another PSU perform better. If you’re looking for clean power delivery, this is as good as it gets.
3.3 volt @ 100%
5 volt @ 100%
12 volt @ 100%
【KVM Switch Dual Monitor】The kvm switch 2 monitors 2 computers allows two computers to share…
Invision are the UK's leading manufacturers of screen mounting solutions. We are original UK-based product…
32" Ultra-Thin & Curved Monitor: 1500R degree slightly curved monitor adopts a new generation of…
【65% Hot-swappable Mechanical Gaming Keyboard】 With built-in modularity for everything from connectors to switches, the…
🎯【New 11 Gen N5095 CPU】 --Mini S is equipped with the 11th Jasper Lake N5095…
27 inch Full HD gaming monitor with an ultra-fast 165Hz refresh rate and Adaptive-Sync(Free Sync)…