ATX 3.0 power supply reviews

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continuum

continuum

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  • #1
    The 12VHPWR connectors honestly garnered more attention this past fall, but speaking of the rest of the PSU changes... looks like ATX 3.0 units are finally trickling out.

    FSP Hydro G Pro ATX 3.0 1000W: looks like an update of an existing design, but still reviews well at Anandtech.
    www.anandtech.com

    The FSP Hydro G Pro 1000W ATX 3.0 PSU Review: Solid and Affordable ATX 3.0

    www.anandtech.com www.anandtech.com

    Smells like Seasonic Vertex GX and Vertex PX (Vertex line slots in-between the lower-end Focus and higher-end Prime series) won't see many reviews til February this year.

    Seasonic Vertex Series

    NewEgg had listed the Seasonic GX-1000 and GX-1200 to be released today but newegg just dropped the ETA release date of 12/21 to out of stock. Does anyone know the real release dates of these PSUs?
    hardforum.com hardforum.com
     
    cogwheel

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  • #2
    continuum said:
    The 12VHPWR connectors honestly garnered more attention this past fall, but speaking of the rest of the PSU changes
    Click to expand...
    Well, that's because the rest of the changes are limited to requiring PSUs to handle 300% power excursions for 100µs on 12VHPWR and 200% for the entire PSU (all connectors) for 100µs or 120% for 100ms. That's the kind of stuff quality ATX 2.5x PSUs already could handle; it just formalizes it as a spec. Shitty power supplies will still be shitty (they usually already violated specs somewhere else), meh power supplies might get a bit better, and good power supplies (the only ones we generally care about here) will be the same.

    (Technically there's also a change to ATX12VO, but we don't care about ATX12VO yet.)

    continuum said:
    FSP Hydro G Pro ATX 3.0 1000W: looks like an update of an existing design, but still reviews well at Anandtech.
    www.anandtech.com

    The FSP Hydro G Pro 1000W ATX 3.0 PSU Review: Solid and Affordable ATX 3.0

    www.anandtech.com www.anandtech.com
    Click to expand...
    Note that they didn't actually test the ATX 3.0 power excursion specs, so this is really just an ATX 2.5x test of a theoretically ATX 3.0 PSU. Aris' review over at Tom's of this PSU is a much better one, he puts it through a lot more, including ATX 3.0 power excursion (transient) testing.
     
    cogwheel

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  • #4
    Pocky Is God said:
    What was the Intel pushed PS spec? That removed the 5V requirement or some such? Are we any closer to that?
    Click to expand...
    You're probably thinking of ATX12VO, where the PSU only provides +12V (hence the "12 Volt Only" name). and the only connectors are a new ten pin motherboard connector instead of the 24-pin one, a couple aux 12V connectors, PCIe connectors, and optionally a 4-pin Molex with only the 12V pins wired. No SATA connectors at all. The idea is that for the very few things that need 5V or 3.3V, the DC-DC converters will be on the motherboard instead of in the PSU. If you have SATA drives, the motherboard has SATA power ports in addition to SATA data ports.

    Since ATX12VO requires different motherboards than standard multi-voltage ATX, and since self-built systems tend towards flexible (e.g. arbitrary number of SATA drives), ATX12VO is mostly found in OEM machines these days.

    Other than that, ATX 1.2 made -5V optional and ATX 2.0 removed it entirely, and at some point the -12V rail also was made optional.
     
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  • #5
    That was definitely disappointing on Anandtech's part, not testing the new ATX 3.0 transient loads, given that the increased transient loads were things that reviewers seemed very concerned about. I didn't think to dig up the Tom's Hardware review, I just happened to randomly be at AT, so that was just me being lazy. 🤦‍♂️

    hwbusters.com

    Intel ATX 3.0 - A MAJOR Misconception! - Hardware Busters

    Hardware Busters - Intel ATX 3.0 - A MAJOR Misconception! -
    hwbusters.com hwbusters.com
    www.tomshardware.com

    Intel's ATX v3.0 PSU Standard Has More Power for GPUs

    There is a new PSU standard from Intel, leading to huge changes in the IT market!
    www.tomshardware.com www.tomshardware.com
    Seemed to be the crux of the issue, although as @cogwheel points out, existing high quality ATX 2.52 and newer units often work just fine.
    Increased slew rates for transient loads (2.5 - 5x times higher for the +12V rail)
    Click to expand...

    ATX 3.0 PSU list (current and upcoming) on /r:
    View: https://www.reddit.com/r/buildapc/comments/y43cyp/comprehensive_atx_30_psu_list/
     
    whoisit

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  • #8
    continuum said:
    Yar, seems like almost everyone else has been gutted or at the very least hasn't kept up to date. I really miss Jonnyguru...
    Click to expand...
    IIRC, Jonny is working for Corsair now. Also, I think he was the one involved in the kerfluffle with GamersNexus about the new 12 volt high power connector having sensing capability to determine how much power a video card can draw.
     
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  • #10
    From last month, but looks like TechPowerUp has added ATX 3.0 transient loads to their power supply testing as well. Thermaltake Toughpower GF3 1650W in the link.

    Note I haven’t wandered back to Tom’s Hardware yet so no idea how complete or incomplete TPU’s ATX 3.0 testing is by comparison.

    www.techpowerup.com

    Thermaltake Toughpower GF3 1650 W Review - Two 12VHPWR Connectors

    The Thermaltake Toughpower GF3 1650 W is the only PSU on the market that offers two 12VHPWR connectors, each capable of 600 W. This unit can support two NVIDIA RTX 4090s with their power limits set to max, along with a powerful CPU and other power-hungry components.
    www.techpowerup.com www.techpowerup.com
     
    NervousEnergy

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  • #12
    I'm running the Thermaltake GF3 1350 W (4090, 5800X3D) and it's been fine for the month it's been running - quiet and flawless. Plenty of room for the 12VHPWR cable (Core X5 case with horizontal MB), but probably still looking to get a Cable Mod version with a 90 degree adapter when available. The PS sits below the MB, so that fat 12V cable comes up and over the card, then bends down into the connector. Not particularly worried about melting (it clicked in well and I don't touch them afterward), but it is kind of ugly sticking up there.
     
    whoisit

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  • #15
    Ananke said:
    Interesting, although it could be completely incompatible with the (many) cases that don't have much room behind the motherboard try to start with (so not enough space for the depth of plug + cable bend).
    Click to expand...
    True. Though it looks like they are using cables without an inline resistor pack and the shrink wrapped cable sheathing ends that my current PSU has. That should help make it compatible with more cases, by letting the cables make tighter bends, but it won't work in all of them. Seems like a nice feature for cases where it would fit.
     
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    whoisit

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  • #17
    mnpctech said:
    I'll get excited when theyve killed off Molex connectors for good.
    Click to expand...

    Me too. The only Molex connector I've got in my current system is on my sound card. Damn thing has an LED hub on it and uses the Molex connector to power it. Needless to say, the LED hub has no LEDs hooked to it and no power going to it either.
     
    cogwheel

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  • #18
    whoisit said:
    Me too. The only Molex connector I've got in my current system is on my sound card. Damn thing has an LED hub on it and uses the Molex connector to power it. Needless to say, the LED hub has no LEDs hooked to it and no power going to it either.
    Click to expand...
    Probably an ancient design they haven't bothered updating. The SATA power connector would work fine for that application.


    I think the only thing that still uses Molex (which, amusingly, isn't Molex but AMP Mate-n-Lok) is stuff like this, ancient fan and LED controllers. Motherboards use ATX (Mini-fit Jr), drives use SATA power, and fans and the like use fan connectors. If you don't use a controller like that, and have a modular power supply, Molex connectors are already dead.
     
    Arkannis

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  • #19
    I have a single device that uses a molex connector. And I'm using a SATA power to Molex adapter to power it.

    Weirdly, it's also an LED controller.

    The real irony, is that I'm not using SATA power for anything else, because all the internal drives are M.2. No spinning rust in this machine!

    As to that PSU, it seems a little bit to be a solution looking for a problem, but it is pretty cool nonetheless.
     
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  • #22
    Has anyone seen reviews for the Corsair RMe series? They have Cybenetics reports which rate them highly but I haven’t seen many other reviews. Seems reasonably priced at 99/130/180 for 750/850/1000

    Newegg page

    EDIT: I had to switch from a link to Corsair to a link to Newegg instead. Corsair sells an older version with the same model name that isn’t ATX 3.0. You’ll want the 2023 version
     
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    continuum

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  • #23
    Corsair RMe 1000 in ATX 3.0 version looks good, nothing on the smaller units yet.

    cultists.network

    PSU Tier List rev. 17.0g - Cultists Network

    PSU Tier List will help you to choose the best PSU out of hundreds of models on the market. From budget to the highest end Power Supplies.
    cultists.network cultists.network

    Their spreadsheet with detailed info:

    View: https://docs.google.com/spreadsheets/d/1eL0893Ramlwk6E3s3uSvH1_juom7SMG5SCNzP2Uov8w/edit?usp=sharing


    Only review so far, but looks like a quality one (can't read it as it's in Chinese, but the graphs are pretty universal):
    wolflsi.pixnet.net

    CORSAIR RM1000e 1000W金牌全模組化電源開箱－港都狼窩 WolfLSI's Den｜痞客邦

    特色： ●通過80PLUS金牌認證，降低廢熱產生，節省電能消耗及電費支出 ●14公分短機身設計，全模組化設計，搭配黑色編織網包覆(ATX24P)及黑色帶狀模組化線組 ●提供2個EPS 4+4P接頭，支
    wolflsi.pixnet.net wolflsi.pixnet.net
     
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  • #24
    I’ll be honest…I see that tier list posted a lot but I always take it with a grain of salt because it doesn’t appear to be first hand information. I’ve been relying on Cybenetics lately. They seem to do good work but is rather unknown. No long write ups or flashy pictures probably doesn’t do well for SEO. Its just a pdf with measurements on noise, ripple, efficiency etc

    Click on the download on the report column to see what I mean
     
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  • #26
    The 12VHPWR connector is being revised to reduce the chances of melting. Sounds like there might be some backward compatibility but if your ATX 3.0 PSU has the 12VHPWR connector on the PSU side then it's affected. I'd avoid buying an ATX 3.0 power supply until all this clears up.

    No More 12VHPWR Connector! Say hi to 12V-2×6
     
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  • #28
    reckless_sniper said:
    Advantage to (modular) Corsair units then? AFAIK, with them just using EPS12v connectors on the PSU side....
    Click to expand...
    Yeah, and all Corsair 3.0 units are fully modular so they'll just need a new cable.

    On a side note I gave the RMe series I mentioned above a try and wasn't impressed. The fan spins up at low loads and is quite loud if the rest of your system is quiet.
     
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    N00balicious

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  • #36
    Just completed a build with a Silverstone Extreme 850R Platinum SFX PSU. It comes with a 12VHPWR PCIe connector, but I didn't need it.

    The reviews were correct. Good PSU, but very poor cables for an SFX build.

    The cables were ATX/EATX sized and inflexible. Also, the SATA and Molex cables has more connectors than any ITX build would ever use, which also made them hard to fold-up. Airflow in the case suffered.

    Also the PSU-side latch of the 24-pin motherboard connector didn't fit the 'catch' in the PSU's body. The connector's latch was levering the connector out of the socket on the PSU until I Dremel-ed it off.

    What was really annoying was that an aftermarket 'sized-to-fit', cable set was more expensive than the new PSU.
     
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  • #37
    N00balicious said:
    Also the PSU-side latch of the 24-pin motherboard connector didn't fit the 'catch' in the PSU's body. The connector's latch was levering the connector out of the socket on the PSU until I Dremel-ed it off.
    Click to expand...
    Ouch. To be clear was this the Silverstone original cable or your aftermarket sized to fit cable?
     
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    N00balicious

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  • #38
    continuum said:
    Ouch. To be clear was this the Silverstone original cable or your aftermarket sized to fit cable?
    Click to expand...
    Yep. Original, inflexible, ATX-sized, 24-pin motherboard power cable.

    Silverstone offered to replace it when I complained. However, they shutdown when I asked if the new 24-pin cable would have a narrower PSU-side latch.
     
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