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Will my PSU will be able to handle this?

Discussion in 'General Hardware' started by yuri221, May 7, 2012.

  1. yuri221 New Member

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    Hey guys, My current rig is:
    Graphics card: 7950 oc
    Processor: I7 920 2.67 ghz
    Ram: 6gb ocz reaper hpc ddr3 1600mhz
    Case: NZXT tempest evo
    HDD: samsung 500gb x2
    Motherboard: DFI x58 dk t3eh6

    and PSU: corsair 620w modular.

    I plan on upgrading the case to Antec 1200 v3 and adding to the process a corsair h100 water cooler.
    And OC my processor as much as possible, Now my question is, Will my PSU will be able to handle all this stuff? Will it be able to handle the antec 1200 and the h100? And what is the max OC I can push my processor with my current PSU?
    Thank you very much guys, Sorry for my stupid questions, I don't know much about this stuff yet :)
     
  2. FreedomEclipse

    FreedomEclipse ~Technological Technocrat~

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    you will be fine. the 7950 doesnt suck up that much power and its not like you have hundreds of hard drives hooked up like some other people around here.
     
  3. yuri221 New Member

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    Ty, So I can just freely OC my processor to lets say...4.5ghz? Without any crushes?
     
  4. FreedomEclipse

    FreedomEclipse ~Technological Technocrat~

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    you wont get 4.5 out of that CPU - at best, youre looking at slightly over 4Ghz, maybe 4.2 or 4.4Ghz if you are really lucky. 4Ghz is definitely doable unless youve got a bad chip
     
  5. yuri221 New Member

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    okay thanks, but are you 100% sure that my psu will handle a 4ghz oc?
     
  6. heky

    heky

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    Yes, no problems whatsoever!
     
  7. Yo_Wattup New Member

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    Personally I wouldnt risk it. An old 45nm i7 + 7950 oc + 620W PSU... thats smells like bad news.. never mind overclocking a 45nm i7... You might get away with it, but man, your pushing it.
     
  8. Tatty_One

    Tatty_One Senior Moderator Staff Member

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    You should be fine, loosely you are going to draw at "Peak" something like the following....

    7950 - Max 175W
    I7 920 @ 4ghz - Approx 180-190W TDP
    2 x HDD's - Max around 20W
    Add in Motherboard, ram and fans etc for a max of about 25W
    Add a watercooling setup, not sure about draw on that so add 20W

    That gives you an approx total of 430W, if I am way out there is still some margin and I am not way out on CPU and Video Card.
     
  9. mstenholm

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    One i920 (OC to 4 GHz) GB UD5, one NV210, one HD and some fans is 260 W at the wall with a +87 PSU.
     
    Crunching for Team TPU
  10. Fourstaff

    Fourstaff Moderator Staff Member

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    Assuming max efficiency that means about 225w drawn by the system, which makes Tatty's number spot on. Go ahead and overclock it!
     
  11. Widjaja

    Widjaja

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    The PSU is all go for the system.

    Back in the day of the X1950pro I remember ATi was making people believe they all needed a seriously beefy PSU with their recommendation which actually was not the case if read through properly, not that people could comprehend what fully loaded system meant.
     
  12. yuri221 New Member

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    thanks alot :)
    ill oc it as soon as i upgrade my case ^^
     
  13. EarthDog

    EarthDog

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    :shadedshu

    Not even close!

    That system will pull, fully overclocked (CPU and GPU) no more than 450W AT THE WALL (take in to account PSU efficiency, and you are looking, at most, around 400W).

    EDIT: I should have read the whole thread... haha! been covered.
     
    Tatty_One says thanks.

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