robwiel wrote:Minimum recommended wattage with capacitor aging (off enermax site) is 560.
Beware: any power supply calculator is absolutely unreliable, and the so called "capacitor aging" concept, as it is presented by those calculators and similar sources, is also plainly wrong.
robwiel wrote:to 280w with gtx 680
which I replaced now with gtx 980
Frankly, if noise level/quality is paramount, I would go for an Enermax Platimax 500/600 (please note: I wouldn't do the same recommendation for their 750/850 siblings), if those PSUs had decent/fair prices there.
robwiel wrote:PSU in here essentially for 750w bracket same price for enermax and corsair (corsair like 8 usd more).
In 800d PSU has whole separate shelf so it doesnt get any hot air from other components (and rests at bottom).
But indeed I met with opinion that people do not trust passive PSUs on high end/oc PCs.
My advice was mainly acoustically-oriented: with reference to the overall sound signature, I'd rather an excellent fanned unit over any fanless one, that's based upon my own experience and personal preference.
Even reliability-wise that could be a smart choice, due to the minor stress imposed to electronic components: but that second advantage just could be (I mean, it's far from certain, talking about high quality units).
Eventually the choice of a PSU may be related to different requirements than just noise: talking about some SPCR-preferred options, performance wise a Seasonic XP/KM or a SF Leadex (like the EVGA G2/P2) are more probably that not better platforms than the ones used in a CWT/Corsair HXi or by any SF Golden King-based PSU, which in turn are better platforms than an Enermax Platimax, which in turn is better than the FSP platform used in the BeQuiet E10-series, and so on (please note that all the mentioned units/platforms are of at least decent build quality and very good performances and that price-wise such a list would look different).