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FSP Readying New Kilowatt PSUs

Discussion in 'News' started by btarunr, Oct 20, 2008.

  1. btarunr

    btarunr Editor & Senior Moderator Staff Member

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    FSP is the brand of power supplies that is popular for using Fortron-made components. The company plans to release three Everest Pro models in November, all of which are kilowatt offerings for high-end PCs and workstations. All three models are essentially the same, except for their load capacities: there's a 1250W model, followed by 1200W and 1100W models.

    The PSUs are modular. They come with blue-coloured shells, that measure 165 (L) x 150 (W) x 86 (H) mm. The PSUs are cooled by 135mm fans with LED lighting. They are ATX 12V V2.2 and EPS 12V V2.92 compliant, and sport six +12V rails of 20A each. The PSUs flaunt an 80 Plus efficiency-rating sticker, with FSP declaring the efficiency to be over 90%. The PSUs are NVIDIA SLI and ATI Crossfire ready. The power supplies feature an Active PFC, over-current, over-voltage and spike protection. Pricing is yet to be known.

    [​IMG] [​IMG] [​IMG]

    Source: TechConnect Magazine
     
    Last edited: Oct 20, 2008
  2. ShadowFold

    ShadowFold New Member

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    Whats the point of a 1250w.. and FSP has been going downhill from what I have heard...
     
  3. jbunch07

    jbunch07 New Member

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    As of now nothing I know of, e-pen maybe. Until we can run 4 4870 X2s :).
     
  4. newtekie1

    newtekie1 Semi-Retired Folder

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    Shouldn't that be 1100w, not 1010w?

    FSP power supplies have always treated me well. These look like nice power supplies, I wish I had a use for all that power though, and I'm sure they will be insanely priced.
     
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  5. PCpraiser100 New Member

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    90% effieciency? if they downgrade their wattage usage, I will finally have no shame getting my hands on a PSU that's 600W-750W. Who gives a crap anyway if FSP is going downhill, after all there are other companies we want to go downhill, such as Coolmax.
     
  6. panchoman

    panchoman Sold my stars!

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    fsp is actually a preety decent brand.. and 90 percent efficency is insane, but its too expected now a days with killowatt psu's, especcially since their main use is for servers and all.
     
  7. WarEagleAU

    WarEagleAU Bird of Prey

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    Not bad though the colors are Ugly. FSP hasnt been going down, they just havent been doing much. I wish they had some sort of Rail Combine. 20A on 6 rails doesnt leave me all "warm and toasty".
     
  8. newtekie1

    newtekie1 Semi-Retired Folder

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    It is better than 120A on one rail.
     
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  9. insider Guest

    No its not, 20A on each of the 6 rails doesn't necessary mean its better than one single 120A rail, the multi 12v rail = better is a myth.
     
  10. newtekie1

    newtekie1 Semi-Retired Folder

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    Not really, just the reasoning behind multiple 12v rails = better is usually a myth. Multiplie 12v rails in high output PSU's is better. Any more than 40A and the rails should be split. The only argument that ever makes sense for the single rail side, is that you get the full use of the all amps, which just isn't true anyway.
     
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  11. panchoman

    panchoman Sold my stars!

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    thats correct, it allows the cost of the psu to be lower, and is safer because the rails are capped, so it causes a little less ripple and much less voltage in the case of any malfunction. plus when you have a huge server with lots of components, you're better off having seperate rails.
     
  12. npp New Member

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    Do some research on the web, and you'll find out that there is almost no such beast as "multiple lines", at least not in the way manufacturers want you to tink of it. Very few power supplies have 2 transformers inside, and even then what you've got are 2 power lines... From then on it's clear that whether the power is delivered over 6 separate cables or only 2, it's completely a matter of taste - except for the fact that running i.e. 100A on a sinlge cable isn't exactly safe (and not allowed by the ATX standard, of course). I don't see any problem in having a 20A current limit on a 12V wire, anyway - I can't think of a device that would need 240W on that sinlge wire alone.

    As for the "90% efficiency" claim - even if it were true, it wouldn't happen before say 500W load, and you'll have to live with mediocre efficiency at the lower digits, where even high-end PC reside when idle. Bottom line, those 1250W beasts seem pretty useless to me (and they are clearly consumer models... server PSU with LED fan, come on...). Thanks god, nVidia and ATI still haven't invented the uber-GPU that would make any sense of them.
     
  13. insider Guest

    Exactly, multi rails is just pure marketing BS, there is no such thing they all come off the same 12v line.

    If I were to buy such a beefy PSU it would be something like this: http://www.pcpower.com/power-supply/turbo-cool-1200.html

    You will find OCZ PSUs (who also own PCP&C now) are single rail.
     
    Last edited by a moderator: Oct 21, 2008
  14. newtekie1

    newtekie1 Semi-Retired Folder

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    240w limit obsolete? Give me a break, show me a component that uses 240w and doesn't pull it from multiple rails already.

    Up to 30% losses? Really. Please at least use a little common sense instead of just believing anything you read. I'll explain, we'll use these power supplies as examples to get the numbers, but the idea applies to all PSU's.

    At 20A per 12v rail is 240w right? Now with 6 rails that makes how many watts total? 1440w... So if we combine all those rails into one 120A rail, you get a single rail that is 1440w, the PSU is only rated for 1200w. Take into consideration the other voltages in the power supply, you are looking about 100w out of that 1200 gone to those. You then have about 1100w left to drive a 1440w rail. I'm not going to go through the math, because I am lazy, but I'm pretty sure that is almost 25% loss right there regardless of rail configuration.

    So sorry to break it to you, but PCP&C is wrong. Even with a large single rail, 100% of the 12v output can't be transfered to the computer, and there isn't a component on the market today that draws 240w from a single rail. And the few graphics cards that come close to that 240w power draw, draw it from at lest two seperate rails, most actually 3.

    The reason for multi rail power supplies, are pretty much what panchoman said, and the reason that if you read some real good reviews of OCZ and PCP&C power supplies, you will see a lot of complaints of voltage drops under load.
     
    Last edited: Oct 21, 2008
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  15. ascstinger

    ascstinger New Member

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    my voltages went up when I had my single-rail tagan under load :p. One just has to do a bit of pre-planning with a multi-rail setup, as opposed to the single, and realize what combined amperage/wattage is
     
  16. Wile E

    Wile E Power User

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    That's propaganda from a psu manufacturer. It's to be taken with a grain of salt.

    Neither design is better than the other. Pros and Cons exist for both.

    Here's a better explanation from Jonny Guru.

    http://www.jonnyguru.com/forums/showthread.php?t=3990

    @newtekie - A TEC can draw 240W off of a single rail, and yes, some people are crazy enough to run them off of their main psu. lol
     
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  17. Hayder_Master

    Hayder_Master

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    even 3 4870x2 need this , 4870x2 =350w full load 3 4870x2 =1050w this is only card's with other part's like many hdd in raid i think try think in 1500w cuz the efficiently of 1250w about 1100w and 1500w about 1300w
     
  18. insider Guest

    Reread my posts "No its not, 20A on each of the 6 rails doesn't necessary mean its better than one single 120A rail, the multi 12v rail = better is a myth"

    The quote you gave basically agreed with the line PCP&C gave, nether claimed its better but rather the 20A limit per line isn't there, hardcore overclockers can easily pull more than 20A off one 12v rail.
     
  19. newtekie1

    newtekie1 Semi-Retired Folder

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    Ah, didn't think of a TEC, though I would hope that anyone using a TEC that powerful with the knowledge required to do it without killing anything, would also have the knowledge to either run it off multiple rails or better yet off an aux power supply. But I do know that this isn't always the case.

    Yes, that was your statement, but then you preceeded to back that statement up with a statement that is implying that a single rail is better. It didn't come right out and say it, but it was implied throughout the entire article. And as Wile E said, that is just PSU Manufacturer marketting BS and there are really Pros and Cons to both.

    I just don't feel comfortable with having a large single 12v rail with the PSU is rated for more then 40A, but as already said it is really just personal preference. Maybe it is my small background in electrical work which tells me an 18AWG wire isn't meant to hold up under much more than 20A at 12v.
     
    Last edited: Oct 21, 2008
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