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Homework Help: Memory organization

  1. Aug 11, 2015 #1
    1. The problem statement, all variables and given/known data
    This task is related to RAM memory organization. Question is:
    "Which memory circuit organization is required on 4GB memory module if every circuit participate equally in 64-bit of memory module? Write at least two organizations."

    2. Relevant equations
    I don't know what should I use here but there are some formulas to use for sure.

    3. The attempt at a solution
    I don't know how to start but solution should be something like 256x8 or something in that fashion.
    I need steps with equations and explanation which lead to solution.
    Thank you very much!
  2. jcsd
  3. Aug 11, 2015 #2


    Staff: Mentor

    You need to show some work here before we can help.

    What have you learned so far?

    It seems this is a problem of drawing a circuit diagram.
  4. Aug 12, 2015 #3
    Okay, there is one similar example which is solved.
    Which organization is required in order to get memory size of 2GB by using 16 memory chips? And solution is:
    Nb | ic =?
    Nb | ic = 64/16 = 4

    Nd | ic = D / Nic = 2048MB / 16 = 128MB

    Solution--> ORG=256Mbx4.

    So, this example is very similar to my problem, but I dont know how to calculate.
  5. Aug 12, 2015 #4


    Staff: Mentor

  6. Aug 12, 2015 #5
    I already have that and I can't understand what I need to do. Anyway, I think this problem should resolve someone who knows computer architecture very good. I don't have a picture in my mind what should I do and how to start.
  7. Aug 12, 2015 #6


    Staff: Mentor

    Per Physics Forums rules, this isn't going to happen (https://www.physicsforums.com/threads/physics-forums-global-guidelines.414380/, under Homework Guidelines):
    We're happy to help you and guide you, but you need to do the bulk of the work.
  8. Aug 17, 2015 #7


    User Avatar
    Gold Member

    So why don't you use this example and give it a shot with your real numbers. Note: your requires at least two organizations. This implies that there isn't one single correct answer, therefore there might not be an equation to solve
  9. Aug 17, 2015 #8
    I think that appropriate memory organizations for 4GB memory which is wide 64-bit are:

    so first organization should be 8x(512MBx8)

    second one is: 4x(1024MBx16)

    is this correct?
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