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Windows XP Home is 32-bit and it allows only to use approximately 3.25GB of RAM. If i buy 2 modules of 2GB, will dual-channel still work even though Windows sees only 3.25GB of RAM?

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up vote 2 down vote accepted

Short answer, yes.

Dual Channel memory is handled by the memory controller, either in the motherboard chipset for older computers or the processor itself, and so it is not a function of Windows but of the hardware that Windows is running on.

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