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Power supply connection

Discussion in 'Hardware' started by JonnyMX, Jan 30, 2006.

  1. JonnyMX

    JonnyMX Petabyte Poster

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    Hi all.
    I've always bought replacement power supplies for the work machines without giving it much thought, just gone by reviews and reliability/price/wattage.

    The other day I ended up with one that had a connector for the motherboard which was too big for our K7 motherboards.
    It looks like they are 24 pin rather than 20 pin.

    What should I be looking for in the product description to avoid making this mistake again? Half of it is gobledygook to me anyway.
     
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  2. elli5on

    elli5on Kilobyte Poster

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    you need to determine what type of motherboard connector is used by the power supply.... AT or atx?? This way, you will know what power supply to buy, If the power supply you have bought has one big connector to attach to the mother board... this is ATX connector, in which case you will need to purchase an AT power supply.

    Good Luck

    Craig
     
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  3. JonnyMX

    JonnyMX Petabyte Poster

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    Thanks Craig.
    It's the same shape at the connectors we usually get, just slightly longer.
    Bit of a bugger really.
     
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  4. elli5on

    elli5on Kilobyte Poster

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    If its the same as you bought for all the others it should fit.... Is it one long connector?? If it is and this does not fit, you will need an AT psu, these consist of 2 connector which join together when connected to the motherboard! Hope this helps
     
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  5. zimbo
    Honorary Member

    zimbo Petabyte Poster

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    WRONG! you need to buy an ATX power supply if it has a big white power knob! AT is two smaller ones joined toether p8 and p9!
     
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  6. simongrahamuk
    Honorary Member

    simongrahamuk Hmmmmmmm?

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    Guy's I think that you're all a little wrong here (correct me if I am someone, it's been a while since I've done things like this).

    AT is a long time dead if the PC is newer than 5 years old.
    ATX PSU's used to be 20 Pins, but newer models for newer boards are now 24 pins. Why I don't know.

    How to tell which model you will need I'm not sure short of actually counting up the pins, which is a bit hard if you're ordering via the Internet!

    8)
     
  7. simongrahamuk
    Honorary Member

    simongrahamuk Hmmmmmmm?

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    Source
     
  8. JonnyMX

    JonnyMX Petabyte Poster

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    Ur, yeah... I think that's the problem I'm having.
    I've had a look at the Scan website and some of the power supplies say '24 pin' but others are a bit vague.
    I was hoping there was something more concrete!
     
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  9. JonnyMX

    JonnyMX Petabyte Poster

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    Oh, OK, I've managed to buy a 24 - 20 adapter for £1.95 on Ebay. Could be sorted!
     
    Certifications: MCT, MCTS, i-Net+, CIW CI, Prince2, MSP, MCSD
  10. zimbo
    Honorary Member

    zimbo Petabyte Poster

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    Nice one! computer-reclaim.co.uk by any chance? 8)

    got one off them.. delivery to cyprus and 300Watt came to 8 UK quid so i was chuffed! :biggrin
     
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  11. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    On some PSUs with the 24 pin power plug the extra 4 pin section is fairly easily detached so as to fit the 20 pin sockets.

    Harry.
     
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  12. JonnyMX

    JonnyMX Petabyte Poster

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    Thanks all of you for your suggestions.
     
    Certifications: MCT, MCTS, i-Net+, CIW CI, Prince2, MSP, MCSD

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