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Hey guys, stupid question...

Discussion in 'System Builder's Advice' started by Patches O'Houlihan, Nov 11, 2010.

  1. Patches O'Houlihan

    Patches O'Houlihan New Member

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    Sooo, first time, long time. I hope this is the right forum for this type of question. I know I'm going to catch crap for this but...

    I've been trying to find info on the intranets regarding my PSU and if it'll be able to handle a non-overclocked 470GTX (non-SLI). My system specs:

    PSU in question: Corsair 520HX - about 2 years old and going strong.

    i7-860 (stock)
    Asus P7P55D Evo
    9800GTX+ (to be replaced with a 470GTX)
    2 sticks G.Skill DDR3 (stock)
    3x 7200rpm WD drives
    3x 120mm Fans (low-medium speed)
    1x 140mm Fan
    2x 92mm fans (medium speed)

    Calculated Current draw via eXtreme PSU Calculator: 352watts
    Calculated Current draw with 470GTX: 431watts


    The reason I ask is because I don't want to have to shell out more cash for a PSU when the one I have is still pretty good so far. Also, I don't plan on on OC'ing the 470GTX when I get it. I've read reviews on the 520HX and how it can dish out more power, but I just wanted to be on the safe side and ask you fine folks of TPU for your expertise.

    Thanks for your input!
    Last edited: Nov 11, 2010
  2. Fourstaff

    Fourstaff Moderator Staff Member

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    You will be fine with that PSU.
    Patches O'Houlihan says thanks.
  3. Yukikaze

    Yukikaze

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    The HX520 will handle your rig with a GTX470 just fine. Also, the PSU calculator programs are complete crap.
    Patches O'Houlihan says thanks.
  4. Patches O'Houlihan

    Patches O'Houlihan New Member

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    Thanks for the awesomely fast responses. Now I can sleep soundly at night.
  5. (FIH) The Don

    (FIH) The Don

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    remember, there is no stupid questions, only stupid answers ;)

    and yes, the hx520 will do fine
    Patches O'Houlihan says thanks.
  6. Tatty_One

    Tatty_One Senior Moderator Staff Member

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    232W peak draw..... no problemo.
    Patches O'Houlihan says thanks.
  7. Patches O'Houlihan

    Patches O'Houlihan New Member

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    Thanks for all the responses. I assumed the online PSU calculators to be somewhere near the ballpark, but now I know I'm mistaken. How did you go about figuring out what the actual usage would be?
  8. (FIH) The Don

    (FIH) The Don

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    most of us in here have an idea of how much certain rigs uses of power and how big a psu it need, it comes with time lol
    Patches O'Houlihan says thanks.
  9. Yukikaze

    Yukikaze

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    Look up reviews (the local ones from tPU! are awesome - W1zzard is a great reviewer) for the components you are using and then sum them up to get your total. In general you need the figures for your CPU(s) and GPU(s), then throw in some extra for your smaller components (~100W will usually be more than enough for your motherboard, other expansion cards, hard drives and fans).
    Patches O'Houlihan says thanks.
  10. Tatty_One

    Tatty_One Senior Moderator Staff Member

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    Patches O'Houlihan says thanks.
  11. DanishDevil

    DanishDevil

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    That's card only though keep in mind. Not the whole system.
  12. NdMk2o1o

    NdMk2o1o

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    I have the same PSU and a GTX470 my PII is also unlocked to x4 and overclocked, no power issues here man!! :toast:
    Patches O'Houlihan says thanks.
  13. BarbaricSoul

    BarbaricSoul

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    There most definently are stupid questions. Those are the ones not asked. ;)
    Crunching for Team TPU
  14. Hayder_Master

    Hayder_Master

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    without overclock it's enough
  15. Fourstaff

    Fourstaff Moderator Staff Member

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    *cough* dishnica *cough*
  16. Tatty_One

    Tatty_One Senior Moderator Staff Member

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    Bad cough you have there, you need to get down to boots and get some benylin :roll:
    Fourstaff says thanks.
  17. Fourstaff

    Fourstaff Moderator Staff Member

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    Fresher's flu, particularly nasty this season
  18. Patches O'Houlihan

    Patches O'Houlihan New Member

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    hmmm, might have to search the forums for said question....

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