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Silverstone Intros DA1650 High-Wattage Modular PSU

Wrong again.... I already said that I sometimes recommend high wattage PSU's to people with three or four high-end graphics cards. I personally use a high-end 450W PSU for my gaming system.
 
-The_Mask- said:
Wrong again.... I already said that I sometimes recommend high wattage PSU's to people with three or four high-end graphics cards. I personally use a high-end 450W PSU for my gaming system.
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Well let's take this at face value then. This is a PSU delivering 1650W at peak load, but it's only gold rated so it missed out of the Platinum rating. That means that it's around 87% efficient if you can find a build that actually needs all that power.

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.

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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.
 
Ramping up for them high power Nvidia Gpu's maybe?
 
Very nice.....but if I can't talk to it.....I'll have to pass..
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All this power, the huge price tag, yet rated at only 80+ Gold?

Yeah, my Seasonic Focus+ Platinum 750 is laughing right now :D
 
Chrispy_ said:
Well let's take this at face value then. This is a PSU delivering 1650W at peak load, but it's only gold rated so it missed out of the Platinum rating. That means that it's around 87% efficient if you can find a build that actually needs all that power.
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It is 1650W continuously, not peak.

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...

but we'd need someone like JonnyGuru to dissect a unit for anything more than mere guesswork.
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Why do you need a Corsair employee for that?
 
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EarthDog said:
Fine... how about the retired Oklahoma wolf? You do understand the point he's making, right? Because of your reply, feels like it went over your head.
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No I don't understand why so many people keep making so many false statement or just posting fud. It's quite clear they lack knowledge, but I that isn't a reason to give others bad advice. It's better to not give advice then to give bad advice.
 
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"False" and "FUD".

Though, I haven't seen much of that either (outside of your curious mention that 80 Plus doesn't tell you much about efficiency). :)
 
And that's why explained that to you and Chrispy_ just above here, because he/she also didn't understand how it works. Many people, just like you two, believe that 80PLUS Gold means an efficiency of 87, 90 and 87% at 20, 50 and 100%. Instead of that being the minimum required.
 
-The_Mask- said:
And that's why explained that to you and Chrispy_ just above here, because he/she also didn't understand how it works. Many people, just like you two, believe that 80PLUS Gold means an efficiency of 87, 90 and 87% at 20, 50 and 100%. Instead of that being the minimum required.
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But, I don't believe that, lol. You're putting words in my mouth. No shit its the MINIMUM to meet the requirement. Then, in most brackets, there is a 3% jump to the next tier (platinum has 4% at one measuring point). lol, you aren't enlightening us.

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. :)
 
-The_Mask- said:
No you just don't like to be corrected if you make a mistake.
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I would have to make one here to be corrected. I haven't. Most of your posts in this thread have done little\nothing but convolute talking points. 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:
EarthDog said:
Ill say it one last time.... 80 Plus tells a user most everything they need to know about efficiency. We'll have to agree to disagree.
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There is nothing wrong about that statement, period.
 
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EarthDog said:
. I challenged you to post an example of a PSU that behaves as you said, but... so far nothing.
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I missed that I guess. But it happens less and less because manufacturers optimize the PSU for 80PLUS instead of your PC. But a Active Clamp Reset Forward design is one that typical has a high efficiency at low loads and drops heavily under higher load. FSP has build many different series using a Active Clamp design. You can look at Aurum Gold, Aurum Silver and Aurum Bronze for example.
 
Aurum Bronze review (circa 2012, lol) at JG showed a (flat) bell curve too. I guess it feels odd to even mention such a thing in 2020 especially within the context of this thread (relevance). ;)
 
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80PLUS Bronze PSU's based on a LLC resonant converter design that are ATX 2.52 compatible like the CM MWE Bronze V2. But like I said optimizing for 80PLUS is worth it for manufacturers, that's why you see it less and less.
 
For the removal of doubt, I used 87% efficiency as that's the 80+Gold 100% load rating when making my last point.

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.
 
Chrispy_ said:
Technically that efficiency could be as high as 88.9% and it would still be classified as 80+Gold
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You really need to start reading my posts. As already explained multiple times there is no maximum, so it can even be 95%. Even if that is totally unrealistic with the current hardware.
 
-The_Mask- said:
You really need to start reading my posts. As already explained multiple times there is no maximum, so it can even be 95%. Even if that is totally unrealistic with the current hardware.
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I read your posts but they seem to be a tangent in pedanticity.

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.
 
Chrispy_ said:
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.
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There aren't any efficiency numbers on Silverstone about this PSU, those numbers you look at are 80PLUS Gold numbers.

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.
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I already said multiple times I have personally have zero interest in this PSU. I only hate the misinformation many people on this forum are spreading about PSU's. That isn't fair to others who don't know the difference between bs and facts.
 
-The_Mask- said:
I only hate the misinformation many people on this forum are spreading about PSU's. That isn't fair to others who don't know the difference between bs and facts.
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Except, the only misinformation we've seen an assertion of '80 Plus' not describing efficiency well enough for 99% of TPU users. You then dig in on 2% bologna and workstations and...................straw man shiza.

Can we all move on? Please? :)
 
-The_Mask- said:
There aren't any efficiency numbers on Silverstone about this PSU,
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You're either trolling or not looking very hard; I already told you it was on the product page. Here, I'll spoon-feed you the URL and draw a red circle around the unambiguous 87-90% I'm talking about.

URL:

DA1650 Gold

Decathlon series power supplies are SilverStone’s most feature-rich models and the DA1650 is no different. Equipped with massive amount of clean, stable power rated up to 1650W at 50℃ with ±2% regulation, it is suitable for use with nearly any ultra-high end enthusiasts PCs or multi CPU / GPU...
www.silverstonetek.com www.silverstonetek.com

Screenshot:
1598641673603.png
 
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