Specifications

Memory Power Macintosh - 2 5
Power Macintosh
G3 Desktop
The Power Macintosh G3
Desktop computer uses a new
type of memory called
SDRAM.
This computer comes
standard with 32 MB of
SDRAM (one 32 MB DRAM
DIMM). You can expand the
total memory to a maximum
of 192 MB* using 64-bit,
JEDEC standard, 3.3 V,
unbuffered SDRAM DIMMs.
ROM
DIMM
DRAM
DIMM
Video
Memory
SO DIMM
Video Memory Note: The computer comes
standard with 2 MB of SGRAM video memory.
There is one video memory slot on the board
that accepts up to a 4 MB SGRAM module for
a maximum of 6 MB of video memory.
Memory Information
SDRAM Speed 10 ns
DIMM Type 168-pin
Soldered SDRAM None
Number of DIMM Slots 3
Supported Sizes in MB 4, 8, 16, 32, 64
Maximum SDRAM 192 MB
Virtual Memory 1 GB
Soldered Video
Memory
2 MB SGRAM
Number of Video
Memory Slots
1
Cache DIMM Slot No
Note: SDRAM DIMMs can be installed one at
time and in any slot as there are no
interleaving benefits.
*The logic board supports a maximum of 384
MB of DRAM, but 128 MB JEDEC industry-
standard DIMMs are too tall to fit in the
chassis, which limits the DRAM to 192 MB.
Important: Some third party vendors have
redesigned their 128 MB DIMMS to be
slightly shorter and to fit in the desktop case.
If the developer has followed the electrical
JEDEC specificiations and verified the design
and functionality for the Power Macintosh G3
Desktop, then these shorter DIMMS should
work without a problem.
SDRAM Configurations
32 MB The Power Macintosh G3
Desktop logic boards come
standard with 32 MB of SDRAM
(one 32 MB DIMM).
Up to
192 MB
Use 4, 8, 16, 32, or 64 MB
168-pin DIMMs.