I recently purchased a <a href="http://www.newegg.com/Product/Product.aspx?Item=N82E16817171067">Cooler Master Silent Pro M2 720W</a> while unaware that <a href="http://www.bit-tech.net/hardware/psus/2013/04/26/best-power-supply-psu-720-750w/3">bit-tech</a> reviewed the PSU and concluded that if you had plans on turning your computer on you were going to have a bad time because, "Its ripple values range from 61.2mV at 200W to 115.4mV at 700W, which is only just within the 120mV limit."
You probably couldn't distinguish a 115.4mV ripple on an oscilloscope at a 12 volt scale so I am curious as to how harmful such a ripple could be on high-end components? If the motherboard's VRM is in working order, shouldn't it remove this waveform disturbance from the input power and keep my CPU/GPU's input power disturbance free?
Should I go through the trouble of returning the PSU and pickup an XFX rebrand of a Seasonic?
A big thank you to any future replies.
You can very easily register a 115.4mV ripple on a 12V scale. Think about it, that is a .115V ripple, which, if it were rippling the voltage sont to the CPU, the seemingly small difference could easily fry your CPU. The recommended core voltage for Ivy Bridge CPUs, for example, is 1.33V. If you had a great motherboard, and it actually put 1.33V into the CPU if you told it to give 1.33V to the CPU, then the ripple of that PSU could bump that up to 1.445V thousands of times per second, or so, and ultimately wear out the transistors far before they were intended to.
I'd highly recommend getting a refund if you still can, and getting a Lepa G650. Generally, you want a ripple below 40mV, at the most, 60, because otherwise, you are in for some bad, terrible, awful experiences with OV. The Lepa G650 has an insanely low ripple, which as of now, escapes me, but it is leagues lower than that 115.4mV ripple you have now.
Thanks for the quick response. I was already on the fence about returning this thing and your reply helped make my decision easier.