Windows 8 and 8.1 Forums


Need a little advise on RAM. Nothing serious.

  1. #1


    Posts : 15
    Windows 8 CP, Windows 7 Ultimate

    Need a little advise on RAM. Nothing serious.


    I am running 2x 2gb ddr2 800 until recently when one of the cards died.
    I have a spare 1gb ddr2 800 and decided I put it in so I'm currently running on 3gb.

    Is it okay that I use the 1gb card or should I just stick with a single 2gb card til I get a new one?

    As of now, the system is running good. no problems whatsoever. (except for some issues with flash using too much cpu)

    Thanks for future responses!

      My System SpecsSystem Spec

  2. #2


    Posts : 22,576
    64-bit Windows 10


    Hello wewinjiggy,

    While it's best to use identical RAM modules to avoid issues, you will be fine as long as it's the same speed and type.

    If they are not the same speed, then all RAM will only run at the speed of the slowest RAM module.

    If they are not the same type, then the RAM may only run in single channel mode instead of dual or triple channel mode.

    Hope this helps,
    Shawn
      My System SpecsSystem Spec

  3. #3


    Posts : 15
    Windows 8 CP, Windows 7 Ultimate


    Hello Shawn,

    Thank you..

    So does this mean that I'm still running on dual channel? The only difference between the 2 cards is their capacity. Both speed and type are the same.
      My System SpecsSystem Spec

  4. #4


    Posts : 22,576
    64-bit Windows 10


    The RAM will need to be the same size in a channel (the two matching slots) for dual channel.

    When you use your 1 x 1 GB and 1 x 2 GB in a channel, then it'll only run in single channel mode.

    It'll need to be 2 x 2 GB or 2 x 1 GB in a channel for it to be dual channel.
      My System SpecsSystem Spec

  5. #5


    Posts : 15
    Windows 8 CP, Windows 7 Ultimate


    Oh, so the capacity should also be the same. Well, thanks again. cheers!
      My System SpecsSystem Spec

  6. #6


    Posts : 22,576
    64-bit Windows 10


    You're welcome.

    Just for FYI, you could have different sizes per channel, but they must be the same size in a channel.

    For example:

    Say you have 4 slots (1, 2, 3, 4). Slots 1 & 3 is channel A, and slots 2 & 4 are channel B.

    You could have say 2 x 2GB in channel A, and 2 x 1GB in channel B to still have dual channel mode.
      My System SpecsSystem Spec

  7. #7


    It's too bad that DDR2 (PC2-6400) RAM is still so expensive. I'm running 6GB (2x2gb and 2x1gb) and they're runnung at 800Mhz and my board will go to 16GB of RAM, but it's just too expensive to buy the 4x4GB RAM, which would be about $300.
      My System SpecsSystem Spec

  8. #8


    Posts : 15
    Windows 8 CP, Windows 7 Ultimate


    Quote Originally Posted by azasadny View Post
    It's too bad that DDR2 (PC2-6400) RAM is still so expensive. I'm running 6GB (2x2gb and 2x1gb) and they're runnung at 800Mhz and my board will go to 16GB of RAM, but it's just too expensive to buy the 4x4GB RAM, which would be about $300.
    Try to find a local tech community around your area. For instance, here in my country we have tipidpc.com which allows us members to buy/sell or trade either brand new or used items with other members. That way you can find what you need for less. Recently, I bought a 2gb ddr2 800 pc2-6400 which only cost me about $15.
      My System SpecsSystem Spec

  9. #9


    Thanks! I've checked with my local computer shop but I'll continue to look. I pick up RAM once in awhile as I'm always working on old PC's and I scavenge parts from the ones that are too far gone to repair/upgrade.
      My System SpecsSystem Spec

  10. #10


    Posts : 1,127
    Windows 8.1 Pro


    Quote Originally Posted by azasadny View Post
    It's too bad that DDR2 (PC2-6400) RAM is still so expensive. I'm running 6GB (2x2gb and 2x1gb) and they're runnung at 800Mhz and my board will go to 16GB of RAM, but it's just too expensive to buy the 4x4GB RAM, which would be about $300.
    that's because the world's moved on to DDR3. 8 GB (2 sticks) is $45.
      My System SpecsSystem Spec

Need a little advise on RAM. Nothing serious.
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