Besides reviews and the latest news on a regular basis we also want to give you insights into our review process and upgrades of out testing equipment. The first piece of hardware that we’d like to show off is our Seasonic Prime Titanium 750, which will be a part of every future test setup. And of course we will also give you the reasons why we were more than happy to be able to use this exact PSU.
Every piece of hardware perform only as good as the general conditions allow. Therefore the performance a processor can deliver can depend on the mainboard it is placed upon as well as the memory modules. One category, whose influence is underestimated most of the time are power supplies. It should deliver enough power for all used components. Oftentimes you can read about a rule of thumb, advising to buy a PSU with 30% power than actually needed to account for capacitor aging (and the drop in output power that goes along this) if you want to use it for many years to come. Besides this the requirements of most users are only visual ones. Visible cables should look good. The best case scenario includes a modular power supply so that you only have cables running around that are really needed, instead of having to find a good spot to put unused cables.
If that would be all, the price of the Seasonic Prime Titanium 750, which is still around 170€, would have to be called excessive. Does that mean that there is more to the story? Let’s see.
Contents and Packaging
Seasonic wants to let you know from the start that you got a premium product in your hands. Therefore you won’t find any colorful shenanigans or brightly colored slogans on the package at all. The front of the black and silver packaging just sports the logos and product name. In addition you’ll find a small note for the 10 year warranty (which is actually 12 years) as well as the small badge for the 80 plus titanium certification. And yes, your read that right. Even though the package says there is a 10 year warranty, you’ll actually get 12 years since Seasonic expanded it to 12 years for all Prime products. The back of the package just shows of the major features and an image of the power supply itself.
After opening the box (and the black one inside) we were quite surprised about the presentation of the product. Besides a separate black box that contains all the cables you’ll find a zip-bag for all the bits and pieces so that you don’t have to tear it open and throw it away. Instead you can reuse it. Exemplary! Contained within this bag you’ll not only find default contents like screws and manuals but also 8 zip-ties and 5 velcro strips. There is nothing getting in the way of a neat cable management. On top of that you’ll get a sticker with the Seasonic Prime logo as well a metal badge for your case. All those things are embedded and held in place by foam pads.
Except for the 20/24-pin cable, wich is braided, all other cables are flat. That’s a point where tasted can differ, but luckily this isn’t a huge problem with modular power supplys since you can always get separate cables.
As a quick reminder that you’re not dealing with a 30€ product, the power supply itself is placed in a velvety kind of pouch.
The build quality and design leaves nothing to be desired. Except (perhaps) if you are one who’ll need every single component to be RGB lighted.
Now we’ve reached the point where a review would show test results for the stability of the voltages of all lines, the efficiency and ripple and noise values. We’ll skip that part altogether. Mainly because those technical values can be found in dozens of reviews already available without a single word on what they’ll be influencing. But also because this isn’t a reviews, but rather and insight for you guys.
But to sum it up you could say that the Seasonic Prime Titanium 750 W set new standards. This holds true for the stability of the voltages in all areas as well as (or especially) for ripple and noise values. This results in more stable voltages, which primary affects the lifespan of overclocked systems in a good way. Higher fluctuations result in the need to apply higher voltages to exceed the values needed for a stable system. That results in warmer system components (e.g. VRM).
Another very helpful feature of the Prime Titanium 750 W is a superb hold-up time. Instead of the 16ms demanded by the ATX standard, Seasonic guarantees a minimum of 30. For most users this value should be negligible, but since our test office is located in a quite old (and badly wired) building it’s a feature that is much appreciated by us. As soon as the house lift starts the network breaks down briefly which results in flickering lights and, with very old power supplies, powered down computers. Afterwards a short overvoltage can be observed. For both cases, the Prime Titanium is the candidate best equipped to tackle those issues.
Of course efficiency did play a role in the decision for the Prime TItanium. Between the efficiency classes bronze, gold and titanium you can, depending on the uptime of your system, save more money with a better product every year than the product cost in the first place. For this purpose we put together a little chart with the power costs for a system drawing 100% power 24/7 as well as one with an 8 hour day that draws just 50% on average. For all those values we’ll just assume the minimum efficiency required for the respective class. For the calculation a price of 26 cent / KWh was used.
As you can easily see, the 24-hour operation has saved the extra cost after only one year (Or to be more precise the total cost of the power supply has already been saved). With the 8-hour operating time and an average of 50% power you’ll need around 3 years. If you take into account that you’ll get a guaranteed 12 year lifetime you should be able to save money in the long run.
Effectively the differences will be even more pronounced as the gap between classes in the lower load range is even wider.
Last but not least the Prime Titanium 750 W is one of the quietest fans in its range due to the generally very quit fan and the available hybrid mode which can have a huge influence on open test setups.
Now let’s get to the possibly most interesting aspect of the Prime series that is important for our purposes. The warranty(time). Seasonic is so certain about the build quality that they raised the time from 10 to 12 years. But what exactly does that matter? 12 years is quite a lot. As mentioned in the beginning it is often recommended that the power of the power supply should be approximately 30% higher than the real payload. The basic idea behind this rule of thumb is to tackle capacitor aging. This describes the fact that every capacitor will lose some of its ability to store power with increasing age and therefore many power supplies can deliver less power with after some time. This is one reason why long warranty periods for power supplies are oftentimes taken with a grain of salt. Sometimes this will be combined with the dear of some fine print in the manufacturers warranties like “This warranty does not cover problems or damage resulting from, but not limited to, any of the following […] Wear and tear associated with normal use” which will sometimes be interpreted in a way that a drop in output power is considered normal by some manufacturers.
That is why we interviewed a Seasonic sales rep on this subject. In short: What will happen if my power supply can only deliver 700 watts 6 years from now?
His answer (roughly translated from german):
Seasonic sets a high standard for all its components and production processes .. and the current PRIME models are one step higher ... because we do manufacture the PRIME in Taiwan and not in China! So we did not increase warranty from 10 to 12 years for no reason ... and this includes the warranty of the manufacturer, which of course also has to adhere to the maximum specified power on the Specslabel ...
and of course:
12 years manufacturing warranty with service center in Germany - replacement defective against new.
Those are, of course, nice words but the reality can sometimes be a bit different. Therefore we addressed the support under an alias with an alleged problem. As an aggravating factor we didn’t have a receipt anymore. Out stated problem was simple: Out power supply supposedly doesn’t provide the full power anymore. Until last week everything worked well but if the system is cranked up now it simply turns of. Another power supply didn’t have this issue and therefore we are positive that the our PSU was at fault. After just a single mail the problem with our receipt would have been gone since the serial number can be used to track the purchase. At the same time out very vague error description was taken seriously and we were directly offered help. Of course the power supply would still have to be tested to eliminate problems on out side but that’s normal.
So you can definitely say that the quotes from Seasonic are not hollow phrases and one can probably assume to have a very reliable and powerful product for the whole 12 years or to get it exchanged asap.
In the end you we can only say that the Prime Titanium 750 W is more than just advisable which of course shouldn’t be surprising to hear from us since we chose it for a reason.If you look at the higher price as an investment in lower maintenance cost, longevity and reliability you can definitely say that you’ll get more than you’ll pay for. Of course the initial costs will only pay of after some time but they sure do. So if you can afford an initial setback go with a Seasonic Prime Titanium and it should be obvious why we’ll use it in all our future test setups from now on.
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