Dual Channel Memory Technology

Discussion in 'CPU, Motherboards and Memory' started by sephers, Dec 14, 2009.

  1. sephers

    sephers Geek Trainee

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    Hi All,
    I'm having troubling understanding the Dual Channel Memory on my motherboard (ASRock 775DUAL-VSTA)

    In the manual it states
    At the moment I have this RAM: Samsung 2GB (2 x 1GB) PC2700 DDR 333 MHz RAM

    So this will go in the Blue Slot as that is DDR.

    The manual also has this warning:
    So what can I install into the Yellow Slots? Or is the idea that I either have DDR in blue or DDRII in Yellow never both, thus leaving me with only 2 ram slots available at a time? :confused:

    Thanks for any help,
    Sephers.
     
  2. BoBBYI986

    BoBBYI986 Geek

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    Hi you motherboard has two memory controllers intergrated in the northbridge chipset (MCH) the blue slots are for DDR1 modules only. The yellow slots are for DDR2 only.

    The motherboard supports dual channel. Dual channel means the cpu can request twice the amount of data than single channel configuration. e.g. your memory is PC2700 ddr 333mhz (x2 = 667mhz = 5400MB/s). PC2700MB/s is the amount of data the cpu can request in single channel configuration but in dual channel it can request twice that amount so 5400MB/s. It basically acts like a two disk Raid 0, it can access both drives and request twice the amount of data.
     

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