Dual channel RAM question

By Jsmith88
Jul 29, 2009
  1. I have a gigabyte ep45-ud3r motherboard that supports dual channel ram and currently have 2x1gb OCZ 1066MHZ matched pair in the yellow slots. I just bought the same brand and speed ram today but in 2x2gb sticks for a total of 6gb. My question is which slots should I put the new RAM in for the best performance with the current RAM. Thanks
  2. Ritwik7

    Ritwik7 TechSpot Chancellor Posts: 1,672   +8

    Dual channel allows the computer to access both banks at the same time thus doubling the effective bandwidth. Only works if the sticks within each bank are identical.
    bank 1 = slot 1 + slot 3
    bank 2 = slot 2 + slot 4

    Would work with 4 sticks but two sticks is more stable.

    That's as far as I know.
  3. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,215   +154

    put the larger sticks in channel #1, and the smaller sticks in channel 2
    although if you are running a 32 bit OS, it doesn't matter as it will only let you use 2.75-3.25 mb of memory. if you are using a 32 bit OS, you should just put your new 4GB kit of ram in channel #1 and remove the other 2 gb.
  4. Tedster

    Tedster Techspot old timer..... Posts: 6,000   +15

    ram slots should be color matched on most mobos.
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