Apple Mac 8600 - Manual (Page 19)

Basics Memory Configurations - 17
wish to take advantage of the computer’s interleaving
capability, which provides maximum performance, you
must install the DIMMs in matching pairs and in paired
slots.
Note:
Memory interleaving allows the computer to read or
write to its memory while other memory reads or writes
are occurring, thus providing for faster performance.
For a pair of DIMMs to function as a single 128-bit wide
pair, they must be the same type and size.
Note:
DIMMs purchased from different manufacturers can
be paired as long as they are the same size and speed;
however, they may not interleave.
The drawings on the following pages illustrates where the
DRAM slots are located on the PM 8600 and PM 9600/WS
9650 logic boards and how they are numbered.