750w for Core i7 930 overclocked?

Discussion in 'Power Supplies' started by SilentAssassin, Jul 31, 2010.

  1. SilentAssassin

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    Would the 750w Corsair be enough to handle the Core i7 at 4ghz and still have enough room for any video card I choose? I'm still deciding on what video card to go with my new system I'm planning on ordering the parts around September. I usually don't spend the cash on two cards for SLI and go with a decent single card option but I'd like to keep SLI available for future use without having to buy another power supply again. I originally was going to go with the 650w but it seems like that's cutting it too close since the i7 eats a lot of power at 4ghz.
     
    #1 SilentAssassin, Jul 31, 2010
    Last edited: Jul 31, 2010
  2. beginner99

    beginner99 Platinum Member

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    well the i7 and any single card will work fine with a 750w psu.

    However I'm not sure it would work for all dual gpu setups. For gtx470 or 480 sli, you probably need a higher rated psu to be on the safe side. Normally it's best to have the psu at around 50% of total load power. eg for a 800w psu at 400w.
    gtx 460 sli would work and also 5850 or 5870 xFire.
     
  3. SilentAssassin

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    Sounds like I would be ok then. If I were to go the sli route it wouldn't be a 480. I tend to go with something lower priced such as a 460 sli or even a single 460 gtx and upgrade every year or other year.
     
    #3 SilentAssassin, Jul 31, 2010
    Last edited: Jul 31, 2010
  4. Jhatfie

    Jhatfie Senior member

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    As mentioned, a 750w corsiar should be fine for any single card. I personally use a 750w Antec TPN for my i5-750 @ 4Ghz and dual HD 5850's in crossfire and have power to spare. So crossfire or SLI with any cards that are not energy sucking pigs like the GTX 470 and 480 should not be no problem.
     
    #4 Jhatfie, Aug 1, 2010
    Last edited: Aug 1, 2010
  5. beginner99

    beginner99 Platinum Member

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    well if you never go dual gpu you would be fine with a 550-600w psu. (which normally is cheaper and depending on model more efficient for single gpu) usage.
     
  6. john3850

    john3850 Golden Member

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    Just built i7 when I run linx at over 4000-4200 pc shuts off Quick and restarts.
    Using a PC 750 quad or silencer single rail ps
    Games were working normal at 4000mhz
    The 2 4890s pull 38 amps each at idle says gpu-z
    Next I will remove bottom card
     
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