Can I run both triple-channel RAM and double-channel at the same time?

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dugo88

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Jul 11, 2012
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My mobo has six triple-channel ram slots and I was wondering if I can run 3 x 2GB sticks plus 2 4GB sticks?

Also, it is best for them to be at the same clock right?


Thanks
David
 
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Yes you can. Intel's memory controller supports what they call "flex mode". The memory controller will map memory according to the common commit on each channel.

If you have 3x 2GiB with one in each channel, it will map this as 6GiB in triple channel. If you then add 2x 4GiB on two of the three channels it will map this as 8GiB in dual channel on top of the existing 6GiB in triple channel.
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Pinhedd

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Aug 7, 2007
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Yes you can. Intel's memory controller supports what they call "flex mode". The memory controller will map memory according to the common commit on each channel.

If you have 3x 2GiB with one in each channel, it will map this as 6GiB in triple channel. If you then add 2x 4GiB on two of the three channels it will map this as 8GiB in dual channel on top of the existing 6GiB in triple channel.
 
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Pinhedd

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Aug 7, 2007
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This is true. There's always the risk that they just won't work together nicely. This is more common at high data rates, but it's not unheard of at DDR3-1066.
 
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