Dual Channel with 2 RAM modules with different capacity.

Hi there! I have an Core i3 3220, and ASRock H61M-GVS board and a Kingston Hyper-X 1600 2GB RAM. I´m considering a RAM upgrade, but in my country (Cuba) there is no big possibilities for doing it, so i found a KIngston Hyper-X 1600 but it has 4 GB of RAM. I have read that this CPU has something called Intel Flex Memory Access that allows the Dual Channel mode to work with modules with different capacities. Does anybody of you tried this before? You think is good as they claim? And if it works, would i have any problem with Memory Controller of the CPU?
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  1. I have also read, that with different sizes the RAM will work in Dual Channel but in asymmetric mode. This means a rel lack of performance? What you recommend, buy this 4GB Hyper-X and add it to my 2GB Hyper-X, or wait for a twin of my current RAM. Thanks
  2. alaintroll said:
    I have also read, that with different sizes the RAM will work in Dual Channel but in asymmetric mode. This means a rel lack of performance? What you recommend, buy this 4GB Hyper-X and add it to my 2GB Hyper-X, or wait for a twin of my current RAM. Thanks


    Asymmetric mode is in itself a single channel mode. You can install different sizes but it will not work in Dual Channel. Though, there are some exceptional motherboards, that allow the mixed sizes for Dual Channel. I would recommend contacting the Motherboard maker to see if a flex memory will apply for this board.

    Good luck!
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