Thursday, August 27th 2020

Silverstone Intros DA1650 High-Wattage Modular PSU
SilverStone today introduced the DA1650, a 1650 W high-end PSU. With a length of 180 mm, the DA1650 has some of the highest power densities on the market, more so given that it's a fully modular PSU (modular cabling adds to the length of a PSU). The extreme Wattage enables the PSU to run completely fanless up to 30% of its capacity or 495 W. Under the hood, the DA1650 features a single +12 V rail design, with a gargantuan 137.5 A rail. It features DC-to-DC switching, active PFC, and most common electrical protections, against over/under-voltage, overload (if you try to crank a truck with this thing), overheat, and short-circuit.
The SilverStone DA1650 offers 80 Plus Gold efficiency, along with ETA A and Lambda S+ certifications. The PSU is designed for 24/7 continuous operation in an environment with up to 50 °C ambient temperature. It uses a 135 mm fluid-dynamic bearing fan to keep cool. Connectors include one 24-pin ATX, four 4+4 pin EPS, twelve 6+2 pin PCIe power, sixteen SATA power, six Molex, and a Berg.Update Aug 27th: SilverStone informed us that the DA1650 will be backed by a 5-year warranty, and priced at USD $330.
The SilverStone DA1650 offers 80 Plus Gold efficiency, along with ETA A and Lambda S+ certifications. The PSU is designed for 24/7 continuous operation in an environment with up to 50 °C ambient temperature. It uses a 135 mm fluid-dynamic bearing fan to keep cool. Connectors include one 24-pin ATX, four 4+4 pin EPS, twelve 6+2 pin PCIe power, sixteen SATA power, six Molex, and a Berg.Update Aug 27th: SilverStone informed us that the DA1650 will be backed by a 5-year warranty, and priced at USD $330.
52 Comments on Silverstone Intros DA1650 High-Wattage Modular PSU
100/87*1650W = ~1900W so it's dumping ~250W of waste heat into little tiny heatsinks like this (picture taken from Silverstone's DA1650 product page). It doesn't take a rocket surgeon to work out that there's not enough heatsink in there for continuous evacuation of 250W. IMO it's going to be hot and noisy enough at 100W with those heatsinks, but we'd need someone like JonnyGuru to dissect a unit for anything more than mere guesswork.
If they're using three or four high-end graphics cards, then there are better power supplies more suited to that purpose. Silverstone make plenty of Platinum-rated supplies in the 1000-1500W range as well as workstation/server grade units for continuous high-load operation both in ATX and server form factors.
This DA1650 is not one of them.
www.techpowerup.com/forums/threads/thermaltake-releases-worlds-first-ai-voice-controlled-digital-power-supply.241290/#post-3794939
www.plugloadsolutions.com/80PlusPowerSuppliesDetail.aspx?id=62&type=1
Yeah, my Seasonic Focus+ Platinum 750 is laughing right now :D
And not it doesn't mean the efficiency is around 87% at full load, it means the efficiency is at least 87% at full load. But can be everything above that. I just explained how 80PLUS worked some posts above this one... Why do you need a Corsair employee for that?
Though, I haven't seen much of that either (outside of your curious mention that 80 Plus doesn't tell you much about efficiency). :)
I won't put words into Chrispy's mouth, but I'm betting the farm (from reading other posts of his) that he knows what you are tried to 'correct'. You're stuck on splitting hairs and missing the point. Please move on. :)
Nobody gives a hoot about 2% loads or your likely fictitious PSU (or one that is trash in the first place, not what we're talking about) that drops several percent between the main measuring points (10/20/50/100). I challenged you to post an example of a PSU that behaves as you said, but... so far nothing. I don't mind being corrected, but, you haven't done that either. And if there is a PSU that does it... again, I said it was likely trash in the first place (so what).
EDIT: There is nothing wrong about that statement, period.
And frightningly mediocre quality... not quite trash.
Can we find these, commonly, built today?
Technically that efficiency could be as high as 88.9% and it would still be classified as 80+Gold but whether it's 250W of waste heat or 190W of waste heat doesn't really matter - those heatsinks can't cope with either amount IMO.
My understanding with this particular design is that 115V AC full load is the hardest single test that must be passed to meet all of the various efficiencies required for an 80+ Rating. So if it's going to fail to meet Platinum, it's most likely to do so on the 115V AC full load test.
I'm well aware that it's possible to build a PSU that exceeds some or indeed all but one of the 80+ ratings, but with this particular layout and design it's extremely unlikely that this PSU is getting more than 88.9% efficiency at full load. More importantly, Silversone themselves state on the DA1650 product page that full load efficiency is 87% and the absolute peak efficiency that this unit can possibly operate at is only 90%. It's pretty safe to assume from the design and stated specs that this thing is scraping through the Gold rating with very little headroom to spare.
I don't understand why you're insistent on trying to find edge-case exceptions for a product that it clearly doesn't apply to. It's a cheap low-mid tier design with predictable performance and all of the specs that you're arguing against are official specs visible on the DA1650 product page. Perhaps they're incorrect, but that's why we need an independent reviewer to confirm.
Can we all move on? Please? :)
URL:
www.silverstonetek.com/product.php?pid=931&bno=15&tb=12&area=en
Screenshot: