How high was your northbridge running at 6G+ runs? I bet higher than in the screens you're posting now. That's what I'm talking about here: low NB frequency and you don't need high frequencies on the memory to have good performance.

Can you run 864MHz CL6 with 2.8G NB on air cooling (as in same temps)?

As for the myth; it's obviously a myth. There's no such thing as 32M killing memory . Has anyone made a list of the motherboards that killed the memory?