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New mobo/cpu = new PSU too???

Discussion in 'Hardware' started by InWaitingSilence, Apr 7, 2007.

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  1. InWaitingSilence

    InWaitingSilence Thread Starter

    Joined:
    Apr 7, 2007
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    Hello all. I'm new here. I just purchased a new motherboard and CPU. Figure I'll be getting a new video card for the PCIe slot too. Something in the 128mb range. I currently use about 1 gig of ram. Anyway, the board I bought has a 24 pin power slot and my current PSU has only a 20 pin power line. I've been trying to find more information online about it but the information is conflicting. Some people say the extra 4 pins are for the PCIe card, others say it is to support more power draw for more powerful hardware.
    My question is, do I need a new PSU or not? The manual for my new motherboard says that I can put a 20 pin cable in the 24 pin slot, but am I going to starve my mobo/cpu of vital amps in doing so? I don't want to damage my new system, but I don't want to have to purchase a new PSU if I don't have to. Are the 24 pin PSUs for overclocking and hard-core power usage, or is it necessary? At what point does it become necessary?

    (Motherboard in question) MSI K8N Neo4 nForce4
    http://www.geeks.com/details.asp?invtid=MS-7125-BULK
    http://www.msi.com.tw/program/support/download/dld/spt_dld_detail.php?UID=651&kind=1

    CPU AMD Athlon 64 4000+
    http://www.geeks.com/details.asp?invtid=ADA4000DKA5CF-N

    Thank you so much for your time and effort.
     
  2. win2kpro

    win2kpro

    Joined:
    Jul 19, 2005
    Messages:
    11,670
    ATX specifications 2.2 changed the motherboard and power supply connectors from 20 pin to 24 pin specifically to address extra power for PCI-e cards. Pins 11, 12, 23 and 24 add an additional 3.3v, 5v, 12v and ground for additional power.

    In short, the answer is YES, if you have a 24 pin motherboard connector you should use a power supply with a 24 pin connector.

    I suggest you consider a good quality power supply such as PC Power & Cooling, Antec, Seasonic, Enermax, CoolerMaster, Thermaltake.
     
  3. Compiler

    Compiler

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  4. InWaitingSilence

    InWaitingSilence Thread Starter

    Joined:
    Apr 7, 2007
    Messages:
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    Thank you for your help
     
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