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
What can I say, between a fanless PSU and CPU and GPU fans that will turn off in idle, you can build a PC that's no more noisy than a console.
Still no SFX, TFX, Flex-ATX Fanless PSUs.
Still, it's hard to design fanless units for smaller form factors as they typically don't have much airflow around the PSU housing, which any fanless unit needs. Fanless Flex-ATX would be incompatible with a lot of Flex-ATX cases simply because they would cover three out of four sides with a steel panel with near zero heat transfer. Same goes for TFX. And frankly a lot of SFX cases too. On the other hand, going the DIY route (with a 12V or 19V AC-DC PSU + a plug-in DC-ATX board like the ones from HDPlex (19V) or Mini-Box (12V)) can net you reasonably powerful yet extremely compact fanless PSU setups.
The lower wattage versions here look very nice. Not least because units that low in power but that high in efficiency are relatively rare. No doubt you'll pay for the privilege, but these also tend to be way overbuilt (a fanless 700W PSU could likely be rated at 1000W or more if a fan was added). Still, 450W is sufficient for the vast majority of PCs today (anything with a ~210W GPU (2070S/5700 XT) + ~100W sustained CPU (so not an OC'd 9900K or 9700K, and possibly not a 3950X if you let it run wild) unless you stuff it full of HDDs and 20W Delta fans) with sufficient margin for cap degradation over the next 5-7 years and peace of mind, so these should make for some very nice upper mid-range builds.
www.silentpcreview.com/Seasonic_Platinum_Fanless_520W_PSU
But I will not risk it, will go for the 850W prime gold eventually :D
Contrary to your point, I can link this, or many other positive reviews:
www.anandtech.com/show/11252/the-seasonic-prime-titanium-power-supply-review
Sorry, edit: you say they're 'really far away'. It was a very clear point you made.