DDR memory working modes?

  michael5139 18:19 31 Jul 2006

I had 2 DDR 333MHz 256MB memory modules which were working in 128bit mode, dual channel.
Now I decided to add another 512MB 400MHz module, which I inserted into one of the two remaining slots. Now when my PC boots - it says that my memory is working in 64 bit mode.
Is is normal, and won't it slow down my memory?

  ade.h 18:22 31 Jul 2006

You can't use odd numbers of DiMMs in dual channel mode.

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