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Molex 4 Pin Square

  1. Jul 16, 2008 #1
    Hi There Please Anybody Than Can Help
    I Am Upgrading Computer Running Into Problem
    Mobo Msik9n Sli V2
    Cpu Amd Athlon 64x2 4600
    In The Procces I Found That I Need A 12 V 4 Pin Square Power Cord Which I Dont Have From My Psu However In The Mobo Istallation Manual It Says I Must Power The Cpu 4 Pin 12 V
    Do I Really Need It ?
    I Can Only Get Power To The Cooling Fans For About 2 Seconds And Nothing Boots??
  2. jcsd
  3. Jul 17, 2008 #2


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    If the installation manual says you need it you probably need it.

    An extra 4 pin molex is sometimes needed to give power to the CPU or graphics card. If you're using a standard ATX power supply there should be a few extra connectors there.
  4. Jul 18, 2008 #3


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    Science Advisor
    Homework Helper

    Yes, you really do.
    They changed the power supply specifications several years ago.
    You need to upgrade to power supply to match the new mobo.
  5. Jul 18, 2008 #4
    Always upgrade your PSU if you upgrade the motherboard and CPU, especially if the existing one doesn't have a 4pin connection.
  6. Jul 18, 2008 #5


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    You might also need a new PSU because it can't give your components the wattage they need in the first place.
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