Samsung 32GB ECC DDR4 Ram - M393A4K40CB2-CTD8Q vs M393A4K40CB2-CTD7Q vs M393A4K40CB2-CTD6Q

Discussion in 'Processors and Motherboards' started by JoshDi, Feb 14, 2020.

  1. JoshDi

    JoshDi Active Member

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    Can someone explain the differences between the different Samsung 32GB ECC DDR4 Ram modules below?

    I currently have 4xM393A4K40CB2-CTD7Q in my machine.

    M393A4K40CB2-CTD8Q
    M393A4K40CB2-CTD7Q
    M393A4K40CB2-CTD6Q
     
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  2. jerrytsao

    jerrytsao ROME X DCPMM

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    Three major RCD (Register Clock Driver) vendors Montage, IDT ("Renesas" starting from 2020) & Inphi, Samsung always use two extra digits differentiating them.
     
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    Last edited: Feb 14, 2020
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  3. JoshDi

    JoshDi Active Member

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    Thank you. Are they cross compatible?
     
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  4. jerrytsao

    jerrytsao ROME X DCPMM

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    Keeping all DIMMs the same PN should be preferred, although there should be no problem at all mixing them.
     
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  5. RedX1

    RedX1 Member

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    #5
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