Specifications

Memory Power Macintosh - 2 9
Power Macintosh G3/Macintosh
G3 Server (Blue and White)
The Power Macintosh G3 (Blue and White) and
Macintosh G3 Server (Blue and White) logic
board provides four PC-100 DIMM slots,
supporting a maximum of 256 MB per DIMM,
for a total of 1 GB.
Compatible DRAM DIMMs must meet all the
following specifications:
• PC-100 Synchronous DRAM (SDRAM)
• 3.3 volt
• 64-bit wide, 168-pin module
• Maximum of 16 memory devices on the DIMM
• Unbuffered; do not use registered or buffered
Synchronous DRAM (SDRAM)
• Maximum height of 2.0 inches.
SDRAM-DIMM Slots
Video Memory Note: The main logic board has
no built-in video RAM. The accelerated
graphics card installed in the computer
includes 16 MB of SDRAM video memory and
does not support video RAM expansion.
Memory Information
SDRAM Speed 100 MHz (8 ns
devices)
DIMM Type 168-pin
Soldered SDRAM None
Number of DIMM Slots 4
Supported Sizes in MB 32, 64, 128
(64 Mbit max.)
128, 256 (128
Mbit max.)
Maximum DRAM 1024 MB
Virtual Memory 1 GB
Soldered Video
Memory
None
Number of Video
Memory Slots
None
Cache DIMM Slot None
Note: DIMMs from older Macintosh
computers may physically fit in the slots, but
they are not compatible and should not be
used.
Installation Order
Different size DRAM DIMMs can be installed
in any order in any DIMM slot. They do not
need to be installed in pairs.
It is recommended that DIMMs be installed in
the first slot available closest to the center of
the board (J-19), then adjacent slots J-20,
J-21, and J-22.
DRAM Configurations
0 Zero MB of memory is soldered
to the logic board. If all four
DIMM slots are empty, the
machine will not operate.
Up to 1
GB
expandable to 1 GB (four 256
MB DIMMs)