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Is my 550W SMPS enough for GTX 470?

My SMPS is 550w. Also I have Core i5-750, 1 TB Seagate, 4GB RAM, DVD writer. I am planning on selling my current HD5770 and buying GTX470. Is my power enough?
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More about 550w smps
  1. I wouldn't. Not unless you're running over 40a on a single rail.
  2. Best answer
    About the only 550 watt PSU I would trust to run a GTX470 is a Corsair 550VX (41 amp 12 volt rail):
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139004

    Or a similar high quality PSU.

    Otherwise, go to a 650 watt PSU.
  3. never heard of SMPS power supplies. Like mentioned above, I would run a solid and tested 550W for a GTX 470. It uses as much power as a 5970 for crying out loud.
  4. Is there something you can't run on the 5770? I've never heard of SMPS either, but would check the ratings on those rails, but I'd guess no.
  5. My Logisys 575 watt psu had the soul sucked out of it after a few hours with the GTX 470. It was only a $25 piece of trash compared to my new Corsair TX650W.
  6. jay2tall said:
    never heard of SMPS power supplies.

    Switching Mode Power Supply, it's not a brand name.
  7. delluser1 said:
    Switching Mode Power Supply, it's not a brand name.

    I know that. but for some reason i though the OP was refering to a brand. Aren't all PC PSU's SMPS?
  8. jay2tall said:
    Aren't all PC PSU's SMPS?

    Yes
  9. jay2tall said:
    I know that. but for some reason i though the OP was refering to a brand. Aren't all PC PSU's SMPS?



    I don't know the reason but everyone in INDIA uses SMPS instead of PSU/Power supply...

    I guess Hardware shopkeepers made the term more popular :D
  10. @OP: Which Brand SMPS is it?

    What resolution do you game at?
  11. Stout92 said:
    My Logisys 575 watt psu had the soul sucked out of it after a few hours with the GTX 470. It was only a $25 piece of trash compared to my new Corsair TX650W.


    be happy it didn't kill your card when it died
  12. naveenk said:
    My SMPS is 550w. Also I have Core i5-750, 1 TB Seagate, 4GB RAM, DVD writer. I am planning on selling my current HD5770 and buying GTX470. Is my power enough?

    It's cutting it pretty close but I would get a 600 atleast.
  13. OP hasn't showed for the second time!!


    Hey naveenk!
    You can also post replies here!!!
  14. Best answer selected by naveenk.
  15. GURU 3D SAYS
    Quote:
    On your average system the card requires you to have a 550 Watt power supply unit. We recommend at least 35 Amps in total available on the +12 volts rails (accumulated).
    And I have a Huntkey 550W PSU with two +12V rails adding upto 34A.
    Refer the specs of my PSU here www.huntkeydiy.com/ProductsParticular?pid=50ede7b21de1d33c011de238368c000a

    I really dunno anything about PSUs So I have a another question:

    As I said it has two +12V rails adding to 34A. I currently have a HD5770 and I am going to remove and sell it and get a GTX470. After I get the GTX470 and after removing my current HD5770 can I connect these two +12v rails to my GTX470 OR will some other component will be using any of those two +12V rails bcoz I need BOTH of the two +12v rails and there are only 2 rails in my PSU in other words: are these +12v rail things only for GPUs ?? (I tried removing my cabinet to see it for myself but couldnt figure out anything).

    So I if my current GPU HD5770 is removed and I get a GTX470 I should be able to connect both the +12V rails right? Please throw some light on this, I dont want to change my PSU.
  16. shubham1401 said:
    @OP: Which Brand SMPS is it?

    What resolution do you game at?



    I use this Huntkey 550W which has two +12v rails adding to 34A. Refer to the specs: http://www.huntkeydiy.com/ProductsParticular?pid=50ede7b21de1d33c011de238368c000a

    I game at 1920 x 1080.
  17. I'm sorry to tell but you MUST change your PSU.
    Yours is a low quality PSU.
  18. You need a Cosrair HX650.
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