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I have some aging Core 2 Duo systems in need of an upgrade. The motherboard combinations are varied so I'm wondering, in a broad sense, are the Core 2 Duo procs interchangeable for Core 2 Quads or do I need to track down each individual motherboard model to check for compatability?

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up vote 3 down vote accepted

It would depend on the chipset. Figure out the chipset model and that should tell you what's supported and what's not.

From that, I looked at the wikipedia page for Intel chipsets and you can see that there are chipsets which support Core 2 Duo, but not the Core 2 Quad. You'll have to figure out which chipsets are being used in your motherboards and see if it's one of those which does support both.

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