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DDR2 and DDR3 RAM motherboard capatibility issue

Discussion in 'Processors and Motherboards' started by DavidL87, May 9, 2012.

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  1. DavidL87 Newcomer, in training

    My motherboard has 2 X DDR2 slots and 2 X DDR3 slots. I recently bought 2 X 4GB DDR3 sticks to put into my computer. I am currently running 2 X 2GB DDR2 sticks. Are the two RAM types compatible?

    When I installed the DDR3 RAM my computer will not turn on. I have yet to try to take out my DDR2 sticks and just use the new DDR3. Will that make a difference?

    Thanks.
    DavidL87, May 9, 2012
    #1

  2. mailpup TS Special Forces Posts: 7,900   +75

    It is likely you can run only one type of RAM at a time. What does your motherboard manual say about this issue?
    mailpup, May 9, 2012
    #2

  3. cliffordcooley TechSpot Paladin Posts: 2,279   +290

    ^^^^ +1
    It's been my understanding that motherboards running two different types of RAM, can only run one type at a time.
    cliffordcooley, May 9, 2012
    #3

  4. SNGX1275 TS Special Forces Posts: 11,891   +117

    Yep, it will make a difference. Remove the DDR2 RAM and all will be well.
    SNGX1275, May 9, 2012
    #4

  5. DavidL87 Newcomer, in training

    Thanks
    DavidL87, May 11, 2012
    #5

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