Monday, March 2nd 2020

SeaSonic Launches Trio of Fanless Premium PSUs
SeaSonic late last week launched three new fanless PSUs under the Prime Fanless series. The company expanded its Prime Fanless TX line of 80 Plus Titanium-certified power supplies with a new 700 W model, the Prime Fanless TX-700. This tops the series which has been led by a 600-Watt model since its debut back in 2017. The TX-700 offers full modular cabling, well over 95% efficiency with 230 VAC input, micro-tolerance load regulation (MTLR), APFC, most common electrical protections, and connectivity that include two 8-pin EPS, four 6+2 pin PCIe, and twelve SATA power connectors.
Next up, SeaSonic expanded its Prime Fanless PX line of 80 Plus Platinum certified PSUs with new 500 W and 450 W models. You get largely the same electrical feature-set as the Fanless TX series, but with around 93% efficiency at 230 VAC. You still get two 8-pin EPS connectors, but only up to two 6+2 pin PCIe power, and eight SATA power. SeaSonic is backing both its Prime Fanless TX and PX lines with an industry-leading 12-year product warranty that's probably supported by the fact that these PSUs have no moving parts.
Source:
FanlessTech
Next up, SeaSonic expanded its Prime Fanless PX line of 80 Plus Platinum certified PSUs with new 500 W and 450 W models. You get largely the same electrical feature-set as the Fanless TX series, but with around 93% efficiency at 230 VAC. You still get two 8-pin EPS connectors, but only up to two 6+2 pin PCIe power, and eight SATA power. SeaSonic is backing both its Prime Fanless TX and PX lines with an industry-leading 12-year product warranty that's probably supported by the fact that these PSUs have no moving parts.
61 Comments on SeaSonic Launches Trio of Fanless Premium PSUs
Also seasonic has a small marketing division and budget compared to Corsair, Cooler Master, Thermaltake, Antec, etc., Their reputation is well deserved for selling good units and making them for other brands. That said, it's not like they have some "secret sauce". Plenty of other OEMs make excellent units as well.
I'm aware of other 'hidden' brands like Superflower but no matter what the guy says, Seasonic are good and deserve the reputation. And that's on my own brand experience.
Even these fanless PSUs have a lot of ventilation, so it should be obvious that they need some circulation. I don't know if convection will be enough, but I would surely have some fans there, otherwise it would take just a little dust buildup before the cooling is severely limited.
I generally wouldn't recommend fanless PSUs unless when required. I would prefer one with the hybrid fan mode, then you can get complete silence during idling, yet still the safety of cooling when needed. I don't think the noise from these fans are a problem unless you're in a special environment (like a lab).
EDIT: Reinstated to get his side
FYI, I've been using seasonic made PSU since PC Power & Cooling used them as an OEM which predates your S12. That just makes me old not an expert on them.
Seasonic PSUs are one of the few makes that are held in high esteem.
I've installed and used many Seasonic PSUs and I've never had an issue personally or with the ones I've installed for people.
I ran a SS 360W Bronze overloaded for years, and it never complained.
My 750W Gold had two 380Xs and a RX 560 hanging off it mining coins. Never coughed once...
I put it in the family box and I have a 750 Prime Titanium in my main system.
Also Seasonic makes the Silverstone fanless units, as far as I know.
The only issue I can think of is if you had 980 Ti on some early production Gold units, they would trip the overcurrent protection, because they'd demand an excessive inrush current.
Marketing is not only advertising, there is a lot more to it. Advertising is only letting people know you exist. If you want people to believe that you're the best, advertising only doesn't help. Things that help for that is for example long warranty. Most people make the connection that longer warranty means higher quality. But there is actually no correlation. The only thing a manufacturer needs to do if you sell a mediocre product with long warranty is selling the product with a higher margin to pay for the higher RMA rate.
Another thing that works very well is, optimize the PSU for reviews. It's not that difficult for a manufacturer to optimize a PSU for the tests done by review site's. You can use sense wires at the end of a 24 pins ATX connector for feedback over the voltage, so that you can have perfect voltage stability with a static load from a load tester. You can use some small capacitors at the end of a PEG, EPS or ATX cable to get the ripple to a 10mV. But all this is for getting a higher rating in a review. In real PC use it won't make any difference as a PC doesn't generate a static load and doesn't care if the ripple is 10mV or like 30mV on the 12V without those caps. These are simple marketing driven optimizations.
But if you actually talk about the best manufacturers, brands like AcBel, Bestec, Chicony, Delta, Etasis, FSP, Flextronics, Great Wall, Huntkey, Lite-On, Murata and Zippy come to mind. Does this means that are always better then other PSU's from other manufacturers? Of course not. It means that they can do everything by them self. From making a design, to actually build the whole PSU and extensive quality control.
If you take a small manufacturer like Seasonic then they are simple not able to do stuff like that. They can not design every PSU by them self, they sometimes buy a design. They can also not manufacturer all their power supplies, they do a lot of out sourcing. Even testing the PSU is something they didn't do a lot with for example the Focus series. That's the reason is was actually known as a series with many problems. Some examples were; high ripple with some graphics cards which let to black screens or freezes. Too tight OCP which would let to unwanted shut downs. Fan with whining/clicking noise because to lose coil windings. Out of spec 12V ripple before shutting down. It's a side issue of carrying more about performance in reviews but les about real life problems.
Does this make Seasonic a bad manufacturer? No it does not. But please don't spam fut, just because you want to defend your brand. There are simple a lot of better brands.
Some more info: www.jonnyguru.com/forums/showthread.php?16132-Corsair-TX850-80-Plus-Bronze-Certified-Power-Supply
I am pretty sure the latter ones are with much higher quality and I do deeply recommend that you buy only such.
It's interesting that many retailers offer products that usually by the manufacturer come with longer guarantees, but the retailers artificially limit them to a 1-year period.
And then ask from the buyers super charges for extending those warranty periods.
These super charges are higher than if you look around for an item that genuinely goes with a 5-year warranty.
And yes, warranties are based on the technical specifications of the components.
Fun fact: Seasonic Prime Ultra Gold and Platinum power supplies are actually Focus Plus Gold and Platinum based power supplies with an 135mm fan instead of the 120mm fan. But because the Prime Ultra has longer warranty the margin is bigger to pay for the 2 years extra warranty.
If anything, it sounds like you either don't fully comprehend what you're talking about or you're just trying to convince yourself. :roll:
Ok, clueless it is
Your explanation is lies and deceit.www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-65132007000300003
Read to educate yourself but I guess it's just your financial interests, but you know you are wrong.
It's called Materials Science - the science that explains the use cases and behaviour of different materials under different circumstances.