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What PSU would be best?

Discussion in 'General Hardware' started by Melvis, Jan 12, 2013.

  1. Melvis

    Melvis

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    Hi guys, Im just wondering what would be the min PSU i could use to run the system that ive listed below.

    CPU: i7 940
    Memory: 6GB DDR3 1333 RAM
    GPU: 2x 7870's
    MOBO: GA- EX58-UD5
    HDD: 320GB Sata 2
    DVD burner X2
    3x120mm and 1 80mm fan

    I have a HX-650 but i dont think this would be enough?

    :toast:
     
  2. cdawall where the hell are my stars

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    You would be loading it up pretty good, but it should hold on if everything is run at stock and the PSU isn't ancient.
     
    Melvis says thanks.
  3. shovenose

    shovenose

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    Melvis says thanks.
  4. Melvis

    Melvis

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    Hmmm ok i might be able to get away with it then? its just for a short period of time to do some benchmarking with but wasnt to sure if the 650 would be enough.

    I live in Australia, and i was looking at the Corsair CX-750 V3 Power Supply? which should be good and at a not bad price
     
  5. cdawall where the hell are my stars

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    PSU calc puts you around 500W with load. In all reality unless you clock the cards and CPU up it should work for a long period of time. That being said I have skirted that line before. 500W unit to power a 3870X2 and Phenom II X4 with an overclock. Consumption was close to 80% on a day to day basis for 4hrs or so (built a rig for a younger brother) exhaust temps were ridiculous on the PSU, but it lasted about a year. Ended up RMA'ing it and the sent back a 750w which is still chugging along today in a different rig. It all just depends if you have a killawatt meter keep track of consumption and guesstimate using 80% for safety. I wouldn't run over 550W from that unit continuously and try to keep the peaks under 700w (after adjustment).
     
  6. Melvis

    Melvis

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    Righto ill give it ago, and hope it dont go bang, least it will save me $120
     

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