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PSU PSU upgrade neede for 680 SLI?

Discussion in 'Hardware' started by smc8788, 12 Feb 2013.

  1. smc8788

    smc8788 Multimodder

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    I've been considering adding another 680 to my system, but am a little unsure of whether this would warrant a PSU upgrade as well. I'm currently using a Corsair HX650 which is getting on for a few years old now. All the other components would remain the same, namely:

    i5 2500k OC'd to 4.2GHz
    3 x HDDs
    1 x SSD
    4 fans and 1 H60 for cooling

    My gut feeling is that it would be cutting it a little close, but that's not a very scientific way of deciding whether I need a new PSU or not. I'm not using any of those PSU calculator sites either as I know they're a load of rubbish. Any thoughts?
     
  2. flame696

    flame696 Terminating People Since 1980....

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    You could just get away with a 650w PSU but you might be pushing it to its limit. I'd go for either a 750-850w Corsair AX units
     
    Last edited: 13 Feb 2013
  3. docodine

    docodine killed a guy once

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    +1 to what flame said
     
  4. mm vr

    mm vr The cheesecake is a lie

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    Get a £10 power meter and check the power consumption yourself.
     
  5. flame696

    flame696 Terminating People Since 1980....

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    Or as mm vr has said and get a power meter (which is what I need to get), and see how much the rig is really pulling power wise might even save you a few bob
     
  6. rollo

    rollo Modder

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    680 sli on system you linked will be fine on that system. I run a similar setup but with an older higher watt CPU ( i7950)

    Below 400 watts in most games. 510-530 benching.
     
  7. smc8788

    smc8788 Multimodder

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    Ah screw it, I think I'll just grab myself of the 750W/850W platinum PSUs to be on the safe side :)

    The HX650 is the only thing I haven't bothered to update over the last few years, so I guess it's due an upgrade anyway.
     
  8. hamza_tm

    hamza_tm Modder

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    They cost an arm and a leg though, have fun :)
     
  9. smc8788

    smc8788 Multimodder

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    Yup, but since they're the only component in my system that I can see lasting the next 7-8 years, I see it as a worthwhile investment ;)
     
  10. Blogins

    Blogins Panda have Guns

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    Worthwhile having a look at the range Enermax offer; really stupendous PSUs! In truth I'm very very underwhelmed with my (third!) Corsair AX850, it has been so much trouble with two failures thus far.
     

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