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Graphics 460 SLI

Discussion in 'Hardware' started by boltonuk007, 31 Dec 2011.

  1. N17 dizzi

    N17 dizzi Multimodder

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    Depending on the PSU I imagine it will run, your gonna have to break out the molex to 6 pins tho...
    If your clocking them you might come into trouble as there will be little headroom.

    What PSU do you have?
     
  2. boltonuk007

    boltonuk007 What's a Dremel?

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    its a cheap Powercool one from scan, should have bought a bigger/better one tbh. I have 2 x 6pin PCIE and 2 x 6+2 PCIE connectors so I should be OK for plugs
     
  3. LennyRhys

    LennyRhys Oink!

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    550W is not enough, nowhere near.

    I just ran a Furmark test with my meter plugged in and the draw at the wall was 600W and on the increase, and this is with both cards undervolted. You'd need 650W to be on the safe side. :thumb:
     
  4. Blogins

    Blogins Panda have Guns

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    Overclocked to 890MHz on both GTX460 my total system draw is 510 Watts from the wall socket at peak. As per my signature my system is an efficient little bugger with lashings of SSD and HDD on top. A 550W PSU might just cut the mustard with a Q6600 and SLI but it all depends if the CPU/GPU is going to be overclocked which could tip the balance to a no no just like LennyRhys warns.
     
  5. Parge

    Parge the worst Super Moderator

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    No way on that powercool psu, I'd bet that POS is only outputting about 400w
     
  6. Blogins

    Blogins Panda have Guns

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    Quite a contrast between our power draw LennyRhys, wonder if the 140Watt difference accounts for our different CPU?

    Curious if it is the AX850 doing a great job in my rig (after one RMA anyway!).
     
  7. LennyRhys

    LennyRhys Oink!

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    Yeah a huge part of it will be the CPU - the SB chips are insanely efficient, and what's more I have my 920 at 4.3GHz and with 1.45 vcore. :D
     
  8. N17 dizzi

    N17 dizzi Multimodder

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    600W at the wall does not mean you need a 600W PSU.

    AC to DC. As long as the PSU is quality enough to dissipate the excess heat then a 550W will be fine for the OPs rig and yours. If it is crappy (which it sounds like it is) I wouldn't risk it.
     
  9. LennyRhys

    LennyRhys Oink!

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    I know, but it depends on how you set your margin of error - I have a 775W PSU and for a long time I was using just one 460 and my power draw rarely exceeded 400W. Having added another graphics card, it's nice to know that I have a lot of headroom and will never be in a situation like OP.

    Having 50-100W to spare is pure common sense, hence my recommendation of 650W. :thumb:
     
  10. boltonuk007

    boltonuk007 What's a Dremel?

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  11. boltonuk007

    boltonuk007 What's a Dremel?

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  12. N17 dizzi

    N17 dizzi Multimodder

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    I agree it is good to have headroom for efficiency. I would rather not have my PSU under heavy load every time I run a game but its not as critical/dangerous as some would have you believe. Especially with a quality PSU (although, his does not sound quality)

    Even some GFX card manufacturers like to way over stipulate power requirements. ASUS reckon you need a minimum 1000W power supply for a MARS 2. Totally ludicrous. A decent 750 - 800W would run it happily.
     
  13. N17 dizzi

    N17 dizzi Multimodder

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    Can you give the exact model of the Powercool one? How many amps can it deliver on 12v?

    If it can genuinely put out 550w then you will be fine to run your rig with 2 460s but look to upgrade for efficiency and future upgrades...

    I haven't read anything about that Be Quiet. Is that your budget?
     
  14. boltonuk007

    boltonuk007 What's a Dremel?

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    http://www.scan.co.uk/products/550w...rossfire-eps-12v-fan-cooling-dual-rail-atx-22

    thats the PSU I have, I know its not the greatest and you should try to buy well known brands but who were Corsair at one point? who were Antec? they all start off somewhere, all start off unknown. It was my budget at the time. Iam hoping to buy myself an Ivybridge rig when they come out so I will be buying a new PSU for that anyway, probably the one I posted earlier or similar. As I said earlier Iam buying a 24" monitor in the next couple of weeks and was hoping to SLI my 460 so Iam hoping I dont have to buy the PSU yet if i dont need to.....thanks for the input guys
     

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