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Which PSU should i get/psu requirement for sli

Hey, i am currently in the process of building a new pc. I already bought a Asus P8Z77-V LK mobo, 1tb hdd, 16gb ddr3 ram, and a dvd writer, and also a evga gtx 550 ti 2gb video card. i plan to get an i3/i5 cpu. the question now is, i plan to sli (get a second video card) in the future, and was wondering which power supply should i get from my current items? I read something about the 12v amp requirements, and not sure which psu is good enough. My budget is around 75-85CAD, hoping for black friday for psu. but what is the recommended psu 12v amp for everything tho?

i found these, not sure if they are good enough:
http://ncix.com/products/?sku=71919
http://www.ncix.ca/products/?sku=75200&vpn=TR2-700W&manufacture=Thermaltake
http://www.ncix.ca/products/?sku=63239&vpn=P1850SNLB9&manufacture=XFX
3 answers Last reply
More about which requirement
  1. get the XFX psu very good make and reliable will handle your system no problem even in sli
  2. Whats your price range?

    This is a great PSU for the price;

    http://www.dabs.com/products/ocz-technology-750w-fatal1ty-series-high-performance-psu-89MM.html
  3. jc4ever said:
    Hey, i am currently in the process of building a new pc. I already bought a Asus P8Z77-V LK mobo, 1tb hdd, 16gb ddr3 ram, and a dvd writer, and also a evga gtx 550 ti 2gb video card. i plan to get an i3/i5 cpu. the question now is, i plan to sli (get a second video card) in the future, and was wondering which power supply should i get from my current items? I read something about the 12v amp requirements, and not sure which psu is good enough. My budget is around 75-85CAD, hoping for black friday for psu. but what is the recommended psu 12v amp for everything tho?

    i found these, not sure if they are good enough:
    http://ncix.com/products/?sku=71919
    http://www.ncix.ca/products/?sku=75200&vpn=TR2-700W&manufacture=Thermaltake
    http://www.ncix.ca/products/?sku=63239&vpn=P1850SNLB9&manufacture=XFX


    Hi jc4 - If you can act quickly (6 hrs left), this is an outstanding deal.
    a top shelf PSU, Seasonic X-750 Gold for under $100

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817151087

    Tom
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