Dual Gtx 560 on 620w?

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  1. I would never trust a 620W with 2 video cards. I doubt it would have enough Amps on the 12V rail to run them. I remember having a 750W that couldn't handle my 2 560ti's although it was an old PSU.
  2. what are the system specs?
    (if your overclocking an AMD CPU @120 watts you are cutting it close.)
    though chances are that 620w is do the job with TWO 24 amp rails . . .
  3. Possible, but overclocking might be out of the question. I've seen i5 2400 + dual GTX560's run on a GS600.

    I'd recommend a Corsair TX650v2 or OCZ Modextreme 700W. Both cost around $90.
  4. I think you are cutting it pretty close. According to guidelines here: http://www.realhardtechx.com/index_archivos/Page362.htm
    you need 700 watts, but strangely they have 560Ti's in SLI only requiring 650. You will need 4 6pin power connectors for sure though
  5. Jynxin said:

    If buying new you'll want to get a psu with the proper amount of connectors
    If you already have it, it has enough power
    For a single card system EVGA reccomends;
    Minimum of a 450 Watt power supply.
    (Minimum recommended power supply with +12 Volt current rating of 24 Amps.)
    Two available 6-pin PCI-E power dongles

    There's no OCP on an M12II's "dual" rail's, it's a single rail psu with 2 times as much 12v power as is reccomended for a system with a single card, that reccomendation isn't doubled for dual card's
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