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Thread: Things one must know?

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    Default Things one must know?

    Hi i'm new and i'm building a new PC, and i'm having some troubles deciding on which would be my best choice for a psu.

    I dont have any experience on this particular hardware, so i would like some guidance, as to what i need to know before i make my choice.

    The only things i'm aware of, is that it's best to be single rail and prefferably have 80plus certification.

    Other than that i would like to get one with 4-8 sata connectors, easy setup, triple sli/xfire, and lots of wattage.

    Mobo asus p6t deluxe 2, core i7 920, ddr3 6x2GB, and possibility for 2-3 gfx is what i'm looking at for my system.

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    The part about single rail is bullshit, and 80plus certification has nothing to do with the quality of the PSU.

    It actually depends on the graphic cards you are about to use. For 3 high end cards I would say at least 1000W.
    Corsair HX 1000, Enermax Revolution 1050W or BFG EX 1200.
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    So what has to do with the quality? Other than calculating the wattage you need, what else is required to make to the choice?

    IS the thermaltake toughpower any good? I'm thinking of the toughpower 1500. Is it a good choice?

    http://www.e-shop.gr/show_per.phtml?id=PER.650648

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    Not if you're in North America - the 1500W is 230V only. The 1200W models should be more than enough for you... the thing with the 1500W is, it's got fairly high ripple and noise once you get it up to those power levels.

    Other models to consider are the Silverstone Zeus 1200W models and the Enermax Revolution 85+/Galaxy Evo 1250W. Ultra X3 1600W if you can find it.

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    Voltage regulation, ripple and transient response have to do with quality.

    Yes, that Thermaltake is pretty good, especially with a 5 year warranty
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    Default

    Quote Originally Posted by therock003 View Post
    The only things i'm aware of, is that it's best to be single rail....
    Not true. Doesn't matter since companies that are using split +12V rails are actually putting thought into how much capaicty the connectors on any given rail are actually going to require.

    Quote Originally Posted by therock003 View Post
    ....and prefferably have 80plus certification.
    The thing that bugs me about 80 Plus is that it only tests at 20%, 50% and 100%. This is fine for 600W and lower units, but if you have a 1000W PSU, your lowest test load is 200W. If you're idle or in standby, you may only be using 150W or 200W and the efficiency may absolutely suck down there.

    Also, a number of really good, very efficient power supplies get missed by 80 Plus because they're not 80% and higher at 100%. It's hard to get a PSU to still be 80%+ efficient at higher loads, but the same PSU that may be 79% efficient at 100% load may be 88% efficient at 50% load.

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    I'm from Europe actually so if Touphpower is a good option, then 230V isnt really a problem.

    Is there any other reason i should go for the 1200W models? Since 1500W costs almost as much as the 1200W models, then maybe it'd be better to have the extra watts just in case they're needed due to the triple corssfire.

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    Quote Originally Posted by therock003 View Post
    I'm from Europe actually so if Touphpower is a good option, then 230V isnt really a problem.

    Is there any other reason i should go for the 1200W models? Since 1500W costs almost as much as the 1200W models, then maybe it'd be better to have the extra watts just in case they're needed due to the triple corssfire.
    From the site you linked, the Corsair HX1000 is cheaper than both the Thermaltake 1500W and 1000W. Unless you are going to overclock the hell out of your processor and use several Thermo-electric coolers, there shouldn't be any need for a 1200W, much less a 1500W PSU.
    "There is no way you can be Harvard Monday through Friday, and try to be Alabama on Saturday" -Art Guepe former University of Virginia head football coach

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    Quote Originally Posted by therock003 View Post
    Is there any other reason i should go for the 1200W models?
    Quote Originally Posted by Oklahoma Wolf View Post
    [...] the thing with the 1500W is, it's got fairly high ripple and noise once you get it up to those power levels.
    Just for my curiosity why triple SLI/Crossfire?

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    Quote Originally Posted by Oklahoma Wolf View Post
    Not if you're in North America - the 1500W is 230V only. The 1200W models should be more than enough for you... the thing with the 1500W is, it's got fairly high ripple and noise once you get it up to those power levels.

    Other models to consider are the Silverstone Zeus 1200W models and the Enermax Revolution 85+/Galaxy Evo 1250W. Ultra X3 1600W if you can find it.
    i wonder how the hx1000 performs if you load 80A on the 12v rail

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