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Basics Dual In-Line Memory Modules (DIMMs) - 8
Dual In-Line Memory Modules
(DIMMs)
The Power Macintosh 9500 Series computers use DRAM
Dual In-Line Memory Modules (DIMMs) instead of DRAM
SIMMs.
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 "Memory Configurations" in Basics for more
information.)
Important:
The Single In-Line Memory Modules (SIMMs)
used in previous Macintosh models are NOT compatible with