How much psu wattage will I need for my build?

Intel i7 3960x
2 x Nvidia GeForce GTX 590
16 GB DDR3 @ 1600 MHz
Asus Rampage IV Extreme
SSD 250GB
HDD 2TB
Optical Drive BD-ROM
Optical Drive 2 - DVD-Writer/Reader
8 answers Last reply
More about wattage build
  1. yassinseoud said:
    Intel i7 3960x
    2 x Nvidia GeForce GTX 590
    16 GB DDR3 @ 1600 MHz
    Asus Rampage IV Extreme
    SSD 250GB
    HDD 2TB
    Optical Drive BD-ROM
    Optical Drive 2 - DVD-Writer/Reader


    A handy power supply calculator:
    http://images10.newegg.com/BizIntell/tool/psucalc/index.html

    I would say that it is conservative but after looking at the power draw of the 590's (almost 500W !!!) maybe not. Corsair has a good lineup for high-end PSU's you may want to check into. Either way, have fun bending space-time with that build :D
  2. I'd make an edumicated guess of 800W.
  3. FinneousPJ said:
    I'd make an edumicated guess of 800W.


    newegg says I need a 1280 watt supply! nowhere near 800w.
    I currently have a 1200 watt so will i need to change?
  4. Pair of GTX590's - about 55 amps peaking to 60.
    CPU - 10 amps.

    That is something like 800 - 850 watts. Figure another 150 watts, max, for motherboard, RAM, and drives.

    I would estimate power requirements at around 900 - 1000 watts. I'd put in a PSU of around 1200 watts. Unfortunately, I do not like the two that newegg sells. If you go up to 1250 watts, there are 4. I like either of the middle two:
    http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007657%20600014027%20600014115&IsNodeId=1&name=1250W
  5. We posted together. What is your 1200 watt PSU?
  6. jsc said:
    We posted together. What is your 1200 watt PSU?



    Corsair 1200 watt
    Corsair Professional Series Gold 1200-Watt 80 Plus Gold Certified High-Performance Power Supply - CMPSU-1200AX
  7. So, you're good to go.
  8. Definitely good to go - that is a beast of a PSU.
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