Specifications

Memory Power Macintosh - 2 3
DIMMs
Whereas SIMMs have 72-pins, DIMMs have
168 pins. The extra pins provide a 64-bit
data path, compared to a 32-bit data path for
SIMMs. In addition, DIMMs do not have to be
installed in pairs like the SIMMs on earlier
Macintosh models. (However, to take
advantage of memory interleaving, the DIMMs
should be installed in paired slots. See
“DIMMs” in Miscellaneous for more
information.)
Memory Configurations
The Power Macintosh 9600 Series logic
boards have 12 DRAM DIMM slots, each with
a 64-bit data bus. You can increase the
computer’s DRAM to 768 MB using 5-volt,
64-bit-wide, 168-pin fast-paged mode or
EDO DIMMs.
When installing DRAM DIMMs in the Power
Macintosh 9600, fill slot A6 first, followed
by B6, then A5, followed by B5, and so on.
DRAM DIMMs can be installed individually;
however, to take advantage of memory
interleaving, which provides maximum
performance, you must install the DIMMs in
matching pairs and in paired slots (A6 and
B6 first, then A5 and B5, and so on).