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DDR in SDR motherboard

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  • DDR in SDR motherboard

    I've got myself a Intel 845 (SDR mobo) with 1 stick of 512MB SDRAM.
    A friend of mine is selling off a 256MB stick of DDR for a bargain.

    My question is: would the DDR work in my system or do I have to go and buy myself some SDR?
    <font size="-4">User error:
    Replace user and try again.
    System 1: P4 2.8@3.25, P4C800-E Deluxe, 1024MB 3200 CL2, 160+120 GB WD, XP Pro, Skystar 2, Matrox Parhelia 128R, Chieftec Dragon Full Tower (Silver).
    System 2: P4 2.0, Intel 845, 1024MB Generic RAM, 80GB WD, XP Pro, Promise Ultra133 TX2, GF3 Ti500. Resides in a neat Compaq case.
    </font>

  • #2
    You're buying. DDR and SDR are not compatible.
    Gigabyte P35-DS3L with a Q6600, 2GB Kingston HyperX (after *3* bad pairs of Crucial Ballistix 1066), Galaxy 8800GT 512MB, SB X-Fi, some drives, and a Dell 2005fpw. Running WinXP.

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    • #3
      Wouldn't anyway I believe.
      Chief Lemon Buyer no more Linux sucks but not as much
      Weather nut and sad git.

      My Weather Page

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      • #4
        Thanks guys.
        <font size="-4">User error:
        Replace user and try again.
        System 1: P4 2.8@3.25, P4C800-E Deluxe, 1024MB 3200 CL2, 160+120 GB WD, XP Pro, Skystar 2, Matrox Parhelia 128R, Chieftec Dragon Full Tower (Silver).
        System 2: P4 2.0, Intel 845, 1024MB Generic RAM, 80GB WD, XP Pro, Promise Ultra133 TX2, GF3 Ti500. Resides in a neat Compaq case.
        </font>

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        • #5
          Yeah, they actually put different notches, etc, so that the ram is physically different.

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          • #6
            Exactly. The DIMM slots are different.
            "I dream of a better world where chickens can cross the road without having their motives questioned."

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            • #7
              Yeah, the memory architecture and pinout is differant too

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              • #8
                SDRAM = 168 pins
                DDR RAM = 184 pins

                you could get out the rat tail file and file off the extra pins, but i don't recommend that
                Lady, people aren't chocolates. Do you know what they are mostly? Bastards. Bastard coated bastards with bastard filling. But I don't find them half as annoying as I find naive, bubble-headed optimists who walk around vomiting sunshine. -- Dr. Perry Cox

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                • #9
                  THere was supposed to be some SDRAM that was 184 pins for some so-called backwards compatability but since there were different numbers of pins so there was no point to it along with the quick price drops of DDR.

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