Can i run x2 670's on my PSU with adapters?

Discussion in 'Videocards - NVIDIA GeForce' started by signex, Feb 19, 2013.

  1. signex

    signex Ancient Guru

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    Hi,

    I'm in the proces of building fastest PC for my budget possible.

    I just bought a Palit gtx670 jetstream wich i put in SLi, second card i can buy next week.

    But my PSU has only 1 6+2pin and 6pin pcie connector.
    The card comes with one 2 molex to 6pin adapter, can my PSU handle these 2 in SLI?

    My PSU is a Enermax Liberty 620w, it does have SLI certified logo.
     
  2. badbuck

    badbuck Member Guru

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    2X EVGA 1080 HY IN SLI
    You need a better PSU for sure a 750 or more with sli cert your PSU would be pushed to hard

    All that nice hardware dont skimp on the PSU get a good one
     
    Last edited: Feb 19, 2013
  3. hallryu

    hallryu Don Altobello

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  4. Nichtswisser

    Nichtswisser Master Guru

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    ASUS GTX 670 DC2 4GB
    Running two 670 with that 620W PSU would be really pushing it.
     

  5. signex

    signex Ancient Guru

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    I won't be overclocking them.

    I have to make due with this PSU sadly.

    Also can't the 680 run on a powerful 750w in sli?
    Cause i do know that Enermax makes very good and powerful PSU's.
     
  6. VultureX

    VultureX Banned

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    Dangerous. I'd upgrade the psu.
    I already had difficulties with a 650W PSU and one 670GTX while overclocking my CPU.
     
  7. signex

    signex Ancient Guru

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    Alright, i gues you guys know better.

    So i bought a Corsair CX750m modulair psu, will i be fine with this psu?
     
  8. squidler80

    squidler80 Member Guru

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    GPU:
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    680 sli

    I've been running two 680 in sli no problem on a thermaltake 650w psu
    I don't overclock anything though.
     
  9. CPC_RedDawn

    CPC_RedDawn Ancient Guru

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    Two things you should NEVER skimp on when building a system.

    The motherboard, this is vital for later upgrades, better support, its basically the mother of your PC so treat her well and splash a bit more cash on her.

    But mainly the PSU, without a doubt the most important component to your PC. This does not mean you should get something overpowered like a 1500W PSU that is just silly. Buy a decent Wattage, with high amps, and make sure its a reputable brand as well for warranty support and reliability.

    Go for something like a Silverstone or Corsair 800W just to be safe.
     
  10. squidler80

    squidler80 Member Guru

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    GPU:
    Evga Titan Sli
    Just Upgreaded My psu

    I just upgraded my psu a couple days ago antcipating the launch of the titan :)

    But i had 0 issues on 650 psu sense last may till now :)
     

  11. Davehillbo

    Davehillbo Member

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    GPU:
    MSI 660 Ti 2gb OC @1.3Ghz
    That PSU will be absolutely fine running that.

    Based on your system with 2x 670 in SLI.

    Minimum PSU Wattage: 421 W
    Recommended : 471w


    +3.3V +5V +12V
    4.9 A 9.6 A 33.9 A
     
  12. signex

    signex Ancient Guru

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    I already purchased a corsair cx750m
     
  13. signex

    signex Ancient Guru

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    Kinda sucks that i can't run 2 670s on 620w, i really needed a new keyboard. :(
     
  14. Davehillbo

    Davehillbo Member

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    you can run 2 670s on a 620w easily! see post above by me!
     
  15. leeaids

    leeaids Active Member

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    i agree a refrance 670 is 150w so 2 is 300w a 620w will be fine, just make sure you look at your 12v rail, if like my psu it can do 850w on the 12v side thats 70a 12v

    if you want to se the ampage use of anything devide the watage by the voltage,

    i used to have a 650 psu and used to use it with the 2 470s with no problems and there using 230w each
     

  16. badbuck

    badbuck Member Guru

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    This will be fine much better and better to be safe then sorry
     
  17. signex

    signex Ancient Guru

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    ^ It's too late peeps, i had already bought it, it came with my new case today.
    I was expecting my case tomorrow, gues i got lucky.

    I can say, i'm happy i bought this PSU, i love what they did with the 6+2pin connectors.
    There are 2 connectors on one cable so it will also look nicer.

    Still if i had known my enermax 620w would be enough i had not bought it as i also need new keyboard and mouse.
     
  18. ---TK---

    ---TK--- Ancient Guru

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    you are better off with a little bit of headroom tbh, I would of went quality 750 minimum myself
     

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