.. or 24-64 slots on mid-range systems, for that matter?
Because, unless it's serialized (like FBDIMMs), there's a linear growth in number of traces (and something line n^2 growth in board surface area taken up by them) for memory, not to mention a more complex (or at least bigger) memory controller.
I'm sad that fully buffered memory didn't take off, as I'm sure the power consumption problem would, eventually, have been solved.
Well, I am not talking 16 channel memory controller :-)
16 slots for 2 memory controller channels. 8 slots per channel. Line count should be reasonable.
That isn't possible with DDR1/2/3 RAM because the signal quality degrades with each slot; with more than 3 or 4 DIMM slots the signal would be garbage.
.. or 24-64 slots on mid-range systems, for that matter?
Because, unless it's serialized (like FBDIMMs), there's a linear growth in number of traces (and something line n^2 growth in board surface area taken up by them) for memory, not to mention a more complex (or at least bigger) memory controller.
I'm sad that fully buffered memory didn't take off, as I'm sure the power consumption problem would, eventually, have been solved.