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 | 4 | 4 | 9.2 |
40 | 5 | 4.4 | 13.2 |
60 | 6.4 | 5.8 | 18.4 |
80 | 8.6 | 8.6 | 20.2 |
100 | 11.6 | 18.8 | 27 |
Extremely tight ripple suppression here, very good results across the board, so much so that I could actually double all of the numbers and they would still be fairly good results.
3.3 volt @ 100%
5 volt @ 100%
12 volt @ 100%
Today, Nintendo has released some notable sales news for the last quarter, with multiple games…
This year, fans of Capcom franchises have been very happy, because during one of the…
Corsair has unveiled the MP700 ELITE series, their latest PCIe 5.0 SSDs, now available for…
The bad times that Intel is going through have given rise to news and information…
The arrival of the AMD Ryzen AI 300 processors, codenamed Strix Point, initially came with…
In the 90s, "Nintendo" became almost a universal term for any gaming console, much like…