Mixing 2x2 and 2x1 kits, ddr3

Hi, is mixing 2x2gb and 2x1gb ram kits good idea? Currently i'm running 1x2gb (Crucial DDR3 PC3-10600 • 7-7-7-24 • Unbuffered • NON-ECC • DDR3-1333 • 1.65V • 256Meg x 64 • )stick and planning to buy another stick soon. I have a very good offer to buy same ram only 2x1gb kit (Crucial DDR3 PC3-10600 • 7-7-7-24 • Unbuffered • NON-ECC • DDR3-1333 • 1.65V • 128Meg x 64 • ), so should I sit on 4gb 2x2gb kit or mix kits together?
Spec.
Amd phenom II X2 555BE cpu
Asus m4A785td-v evo mobo
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  1. Hi Harijsa and welcome to Tom's forum.

    The 2x2GB + 2x1GB configuration can only works in single channel, so, you will lose performance in that configuration. Go with 2x2GB kit, that gives you the best performance.
  2. Ok, the thread is a little confusing for me (I'm slow today)

    You currently have 1x2GB. A good offer to 2x1GB, if you go in that configuration you will get 3GB single channel since the IMC only can run in one configuration single or dual channel.

    Now you say: Is mixing 2x2GB + 2x1GB is a good idea?, that means for me that apart of the 2x1GB good offer that you find, you will buy another 1x2GB stick RAM right?. If i'm right you will have 2x2GB + 2x1GB, both running in single channelas malmental says.
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