3 ms·
why can’t we have 8-16 slots in low-cost systems? .. or 24-64 slots on mid-range systems, for that matter? Because, unless it's serialized (like FBDIMMs), the
by mmt 17y ago
why can’t we have 8-16 slots in low-cost systems?
.. 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.
- BarsMonster 17y agoWell, I am not talking 16 channel memory controller :-) 16 slots for 2 memory controller channels. 8 slots per channel. Line count should be reasonable.
- wmf 17y agoThat 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.
- BarsMonster 17y agoOk, then we need DDR3 replicators :-)