PSU doesn't have 4 pin CPU connector!

Discussion in 'Processors and motherboards Intel' started by Dare365, Jan 4, 2011.

  1. Dare365

    Dare365 Active Member

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  2. fearsjohn

    fearsjohn Maha Guru

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    the 8 pin will split into a 4 pin. and it is not the pci-express connector there is another one called a 4+4
     
  3. Dare365

    Dare365 Active Member

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    I don't see how. I've tried to separate them but no luck.
     
  4. iancook221188

    iancook221188 Ancient Guru

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    there should be two with that power supply an 8 pin and a 4+4
     

  5. pooley

    pooley Member Guru

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    It says in the description of the psu that it has 2 x 4+4-Pin ATX/EPS 12V connectors so there must be something your not doing right, just need to separate them really.
     
  6. Arctucas

    Arctucas Ancient Guru

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    @Dare365,

    Can you not install the 8-pin so that half of the connector just overhangs?
     
  7. Detection

    Detection Banned

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    The 2 x 4 pin CPU plugs slide apart from each other, pull one side up and the other down,

    Dont try to just pull them apart
     
  8. Renegade8100

    Renegade8100 Ancient Guru

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    I knew it had them but looked anyway and there is even a pic of the cable on the newegg pic of the corsair
     
  9. Dare365

    Dare365 Active Member

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    I ended up doing this. I cant say it looks unsafe in any way, it fit pretty snugly, I was worried that the gap in the middle would've been obtrusive but it actually fit quite well.

    Thanks guys!
     
  10. shimyns

    shimyns Ancient Guru

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    It's not unsafe. Some of the 8 pin connectors don't seperate into 4+4 and in those cases, you're meant to do exactly like you did: connect 4 pins and let the others overhang.
     

  11. gmavignier

    gmavignier Maha Guru

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    Isn't there a risc of electrical problems if you do so?
     
  12. shimyns

    shimyns Ancient Guru

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    If the mobo is reported to be compatible with that cpu yet only offers a 4 pin connection, the assumption is that those 4 pins are enough. There is a reason that most PSUs have a split 4+4 pin connector: For such cases.
    More demanding (quad core) cpus are "better" with an 8 pin connection and that's why higher end mobos have them. In this case, the full 4+4 pin connector is used.
     
  13. gmavignier

    gmavignier Maha Guru

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    My case is the exact opposite. I have an 8 pin mobo but my PSU only has a 4 pin connector. How about that? It runs fine but am I missing out on anything?
     
  14. shimyns

    shimyns Ancient Guru

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    As I understand it, 8 pins gives you better ground --> better ~stability. However the same amount, 12v, is provided by either 8 or 4 pins.
    Some boards come with a cover for the 4 unused pins.
    If you use a 4 to 8 adaptor I think you'll get better ground.
    But you are basically fine as is, IMO.
     
  15. Renegade8100

    Renegade8100 Ancient Guru

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    I have no idea what you're talking about.. The reason for eps12v is to provide more wattage to the cpu for multi-rail power supplies. A single rail power supply does not need the extra 4 pins because the cpu is getting all the watts it needs. Unfortunately many motherboards when the switch came out for multicore cpu's in the consumer market, the manufacturers were putting in measures like disabling overclocking or multi-core cpu support when the extra 4 pins weren't populated on the board. There is a lot more I left out and was vague on for the sake of space so here is more info

    http://www.enermax.cn/enermax_pdf/EPS12V Spec2_92.pdf
     

  16. shimyns

    shimyns Ancient Guru

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    Yeah, I read up on it (not the enermax link but other sources) and I guess you are right. I stand corrected.
    In a case where the board only has 4 pins, there's not really any risk. But the other way around can be downright risky. If the cpu power draw is too high for the psu rail, it can cause problems and should be avoided.
     
  17. gmavignier

    gmavignier Maha Guru

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    Maybe that's the reason my mobo only reports a small OC for turbo mode and not the full value announced by Intel.
     

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