Old PC - need power supply help

Discussion in 'Alternatives to Mac Hardware' started by adam9c1, Jun 12, 2018.

  1. adam9c1 macrumors 68000

    adam9c1

    Joined:
    May 2, 2012
    Location:
    Chicagoland
    #1
    I have an old Dell mini desktop which came with Win 8.

    I would like to use a GTX 1050 card which takes a 6 pin for power.

    The main board is 24pin and 4pin for CPU.


    When looking at power supplies I see 4+4 or something like that. Is that a standard for newer main boards?

    I’m lost king at a used PSU like this:

    https://www.evga.com/products/product.aspx?pn=220-g2-0650-y1


    The computer is a i3 or i5 g2020 based or something like that.
     
  2. hughw macrumors member

    hughw

    Joined:
    Jan 15, 2012
    Location:
    Bath/Bristol, UK
    #2
    You don't say which dell PC you have, but most of the smaller desktops they sell use a non-standard size power supply, so unfortunately it's not a simple case of fitting a new PSU

    if you look at the specs page on the link you posted, there's a line for PCIe power supply - which is what your graphics card takes, which says it has a 6+2 connector, so you just have to connect the 6 pin connector to your GTX 1050

    Hope that helps

    Hugh
     
  3. adam9c1 thread starter macrumors 68000

    adam9c1

    Joined:
    May 2, 2012
    Location:
    Chicagoland
    #3
    My concern was for the CPU connection. The computer now takes a 4 pin connector. The larger PSU has 8 pin, and 4+4.

    The main board is already installed in a larger small tower case.
     
  4. belvdr macrumors 603

    Joined:
    Aug 15, 2005
    Location:
    No longer logging into MR
    #4
    Look at the photo of the cables. I'v also attached it here. The CPU cable is in the upper left. It's an 8-pin block that attaches to the power supply and it comes out as two 4-pin connectors, hence the 4+4 moniker.
    220-G2-0650-Y1_XL_3.jpg
     
  5. adam9c1 thread starter macrumors 68000

    adam9c1

    Joined:
    May 2, 2012
    Location:
    Chicagoland
    #5
    So, would I be able to split the 4+4 and only use one connector? Is the polarity wiring the same as in older devices using a single 4 pin connector?
     
  6. belvdr macrumors 603

    Joined:
    Aug 15, 2005
    Location:
    No longer logging into MR
    #6
    You can definitely only use one. It is already two 4 pin connectors. The pinout is part of the ATX spec.
     
  7. Haswell macrumors regular

    Joined:
    Nov 9, 2012
    Location:
    USA
    #7
    You will need a 24 pin to 8 pin adapter. They sell them on Amazon and eBay for about $7 to $13.
     

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