In article eNkTa.110738$GL4.28806@rwcrnsc53, "Mike Gorman"
wrote:

I'm curios. Why use the furthest slot?

As usual, excellent answer.

Use the slot furthest from the processor,
when using a single stick.
HTH,
Paul

It places the discontinuity caused by the capacitive loading of the
chips next to the discontinuity caused by the end of the transmission
line :-) Or maybe, it just works better that way :-)))

Since a DDR bus is terminated at the end of the bus, the effect
should be minor (should make little difference). The case that
is usually worst for most people, is sticking a single DIMM next
to the processor. The theory there is that the rest of the memory
bus, after the stick, is a stub, and stubs are bad in T-line theory.

What is especially troubling for me, is what to tell someone who
owns a P4PE. There, the wiring of the control signals doesn't
allow my favorite advice to be used. So, the poor P4PE owner has
to place the single DIMM in one of the two slots nearest the
processor. And I don't hear many complaints from them, so what
should I be recommending... Hmm...

I wish I still had access to a good simulator. Unfortunately
they cost $20K-$35K for a license. That is how I like to settle
issues like this.

Paul