Am i using Dual Channel?

Discussion in 'General Hardware' started by forcer, May 14, 2009.

  1. forcer

    forcer OSNN Senior Addict

    Messages:
    413
    I recently built a computer and didnt really think about Dual Channel Memory mode when setting it up... i checked the diagram and i've confused myself with it.


    my memory is installed in DIMM_A1 and DIMM_A2

    am i running in dual channel or not? (diagram is attached..)

    thanks
     

    Attached Files:

  2. Bman

    Bman OSNN Veteran Original

    Messages:
    8,799
    Location:
    Ottawa, Ontario
    I have recently been wondering that as well.

    I have 8GB of RAM installed, never did any settings, assumed it was automatic.
     
  3. assclown

    assclown OSNN Citizen Man

    Messages:
    80
    Location:
    Washington
    That is interesting that you bring this up. I assumed it was auto as well. I know when i made the move to Dual Channel, my Vista performance score for memory dropped by a bit. I found that some motherboards have a memory/FSB ratoio setting. If your FSB runs 533MHz, then set the ratio 3:4 to boost your RAM MHz. If it is 400MHz FSB, set it 1:1 so each channel of RAM will run at 400MHz, equalling 800MHz. The dual channel as far as i can conclude from my research is all auto, as each stick is handled independantly, giving access to each simotaneously.
     
  4. LordOfLA

    LordOfLA Godlike!

    Messages:
    7,027
    Location:
    Maidenhead, Berkshire, UK
    For dual channel you should use A1, B1

    If you have all 4 bays filled you will be using dual channel.
     
  5. epk

    epk Moderator Political User Folding Team

    Messages:
    1,241
    Location:
    Buenos Aires
    yeah ^^

    u can check if its working with cpu-z
     
  6. dz2k

    dz2k OSNN Junior Addict

    Messages:
    26
    i agree to d/l the free program cpu-z. i have 8gb of memory also and when you open it..go to the "memory" tab and look for "dual." i have a 1066fsb(qx6700 quad) and have my memory running at 333mhz. are you saying my memory would be better at 266mhz timings instead?
     
  7. Bman

    Bman OSNN Veteran Original

    Messages:
    8,799
    Location:
    Ottawa, Ontario
    Yea I will have to look with that app, cause I have quad cores, and 1066 ram, and this and that and it's confusing. I will see what I can figure out.
     
  8. forcer

    forcer OSNN Senior Addict

    Messages:
    413
    Thanks for the posts. i thought i was running in single mode and cpu-z confirmed this.

    I will switch it over later to see if there is any performance increase.

    what are the advantages?
     
  9. LordOfLA

    LordOfLA Godlike!

    Messages:
    7,027
    Location:
    Maidenhead, Berkshire, UK
    128bit wide data requests - you double your data access speed which can result in significant performance gains in data hungry situations such as gaming or video production and data compression.