Corsair RMi Series RM650i Fully-Modular Review




/ 4 years ago

« Previous Page

Next Page »

Ripple


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.

sample_scalev2

Sample Ripple Graph

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 Ripple5V Ripple12V Ripple
20 3 3.4 4.2
40 3.4 4.2 5.4
60 3.8 4 6.4
80 44.4 5.4 9.4
100 4.6 6.4 12

This was quite a surprise for us, so much so that we had to re-test just to be certain that the results were correct. The ripple suppression is exceptional, to say the least, easily the best we’ve ever seen! This is due to the caps on the added PCB board which filter at the modular connectors.

3.3 volt @ 100%

3.3v

5 volt @ 100%

5v

12 volt @ 100%

12v

« Previous Page

Next Page »



Topics: , , , , ,

Support eTeknix.com

By supporting eTeknix, you help us grow and continue to bring you the latest newsreviews, and competitions. Follow us on FacebookTwitter and Instagram to keep up with the latest technology news, reviews and more. Share your favourite articles, chat with the team and more. Also check out eTeknix YouTube, where you'll find our latest video reviews, event coverage and features in 4K!

Looking for more exciting features on the latest technology? Check out our What We Know So Far section or our Fun Reads for some interesting original features.

eTeknix Facebook eTeknix Twitter eTeknix Instagram eTeknix Instagram

Check out our Latest Video

  • Be Social With eTeknix

  • Latest Video

  • Features

  • Poll

    Do you like RGB?

    View Results

  • Archives