Question about RAM slots on Asus P7P55D Pro mobo

I'm thinking of getting 64 bit W7. I currently run 4gb Gskill Ripjaws 1600 9-9-9-24 timings. If I were to get 64 bit and another 8 gbs of RAM (2x4gb 1600s) can I use the 8gbs in, say, slots 1&3 and the 4gbs in slots 2 & 4 (or whatever slot combination therein)? I just wondering and I have the mobo manual at home but I'm at work right now. Thanks.
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  1. Best answer
    It's never recommended to mix RAM as it often will not work. It's even more unlikely that mixing RAM of different size DIMMs will work. 8 GB. of RAM is plenty for most folks unless you are running large or many applications.

    The only way to tell if mixing RAM will work is to physically install it and see, though I don't recommend mixing at all, exspecially with DDR3 which is more sensitive due to the higher frequency.
  2. Thanks for the response. I was just curious because I didn't want the sticks to just sit around, and no one else in the house can use them right now.
  3. Yeah, as he said it is not certain whether it will or not.

    There is a good chance it will, and a good chance it won't.

    You can always drop them in and see what happens. You might have to drop the speed down to 1333MHz.

    If it doesn't boot there should be no damage to the system, just power off and pull out one of the sets.

    If you do decide to drop them in, you will want to split it up like you said. 1&3, 2&4
  4. Best answer selected by thestrangebrew.
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