RAM Memory Organization: Solving the 4GB Memory Module Challenge

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Discussion Overview

The discussion revolves around the organization of RAM memory circuits for a 4GB memory module, specifically focusing on configurations that allow equal participation of circuits in a 64-bit memory module. Participants are exploring potential circuit organizations and seeking guidance on how to approach the problem.

Discussion Character

  • Homework-related
  • Exploratory
  • Technical explanation

Main Points Raised

  • One participant presents a homework statement asking for memory circuit organizations for a 4GB memory module, expressing uncertainty about how to start the problem.
  • Another participant requests that the original poster show some work before assistance can be provided, emphasizing the need for effort in solving the problem.
  • A participant shares a similar example involving a 2GB memory size and 16 memory chips, providing calculations and a proposed organization of 256MBx4.
  • Some participants suggest that the problem may require drawing a circuit diagram and that multiple organizations may exist for the 4GB memory module.
  • One participant proposes two potential organizations: 8x(512MBx8) and 4x(1024MBx16), questioning their correctness.

Areas of Agreement / Disagreement

Participants generally agree that multiple organizations are possible for the 4GB memory module, but there is no consensus on the specific organizations or the correctness of the proposed solutions.

Contextual Notes

Participants express uncertainty regarding the calculations and the approach to the problem, indicating a need for clearer understanding of the concepts involved in memory organization.

wingman-001
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Homework Statement


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."

Homework Equations


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

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!
 
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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.
 
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:
D=2GB
Nic=16
----------
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 don't know how to calculate.
 
This article may help:

https://www.doc.ic.ac.uk/~wl/teachlocal/arch1/notes/notes2.pdf
 
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.
 
wingman-001 said:

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.
Per Physics Forums rules, this isn't going to happen (https://www.physicsforums.com/threads/physics-forums-global-guidelines.414380/, under Homework Guidelines):
Giving Full Answers:
On helping with questions: Any and all assistance given to homework assignments or textbook style exercises should be given only after the questioner has shown some effort in solving the problem. If no attempt is made then the questioner should be asked to provide one before any assistance is given. Under no circumstances should complete solutions be provided to a questioner, whether or not an attempt has been made.
We're happy to help you and guide you, but you need to do the bulk of the work.
 
wingman-001 said:
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:
D=2GB
Nic=16
----------
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 don't know how to calculate.

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
 
donpacino said:
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

I think that appropriate memory organizations for 4GB memory which is wide 64-bit are:

1.)
4096MB/8=512MB
8*8=64
so first organization should be 8x(512MBx8)

2.)
4096MB/4=1024MB
4*16=64
second one is: 4x(1024MBx16)

is this correct?
 

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