TechSpot

What PSU do I need?

By Tatoze
Feb 9, 2012
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  1. Hi there

    I am currently in the process of building my own computer,
    mainly as a learning experience.
    However, I do not know which power supply I should get (wattage).

    I have chosen out these parts;

    MotherBoard X79 extreme 4*
    CPU Intel Core i7-3930k @ 3,20 ghz
    Cooler Corsair hydro H100 CPU LIquidCooler
    RAM Corsair Vengeance *DDR3 1800Mhz 16GB
    VideoCard Gigabyte GeForce GTX 580
    SSD OCZ agility 3 series 120GB
    HDD SeaGate Barracuda Green 2tb SATA3
    Mid-Tower CoolerMaster Storm Sniper

    Ill upgrade a gtx 580 later, so please can anybody help me out?
  2. slh28

    slh28 TechSpot Paladin Posts: 1,925   +170

    Are you saying you're thinking of adding another GTX 580 in SLI in the future?
    For a single card you probably need 650-700W, for SLI 850W or more.
  3. Tatoze

    Tatoze Newcomer, in training Topic Starter

    Yes im thinking of adding a second Gtx 580 in the future..so if i buy a 850w PSU is gonna be enough power for 2 gtx 580? Or better buy a 1000w straigh away??, thanks for helping btw
  4. slh28

    slh28 TechSpot Paladin Posts: 1,925   +170

    I would say just get a quality 1000W PSU, will future proof you for a long time.
  5. Blkfx1

    Blkfx1 TechSpot Addict Posts: 887   +171

    I agree with @SLH28 850W+ will serve you well. Here is a good one I found on newegg.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139011


    You might want to look into grabbing a Full tower instead of that mid- tower. I say this because you may be packed a little tight in there once everything is in. Especially since you do plan on going for a SLI GPU setup.
  6. LinkedKube

    LinkedKube TechSpot Project Baby Posts: 4,265   +41

    Definately suggest a 850+ watt quality psu. Silver or Gold rating.

    Corsair, Silverstone, Ocz zx, Thermaltake.


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