Specifications

Memory Quadra/Centris - 6
Quadra 900 and
950
The Quadra 900 and 950 have
no soldered DRAM. Total
memory can be expanded to
256 MB.
IMPORTANT : Do use
composite SIMMs in the
Quadra 900 or 950.
Note: 8 MB and16 MB SIMMs have not been
tested and are not officially supported on the
Quadra 900 and 950.
Note: Fill a bank with DRAM SIMMs of the
same size or leave the bank empty (no
partially filled banks).
Memory Information
DRAM Speed 80 ns
SIMM Type 30-pin
Soldered RAM none
Number of SIMM Slots 16
Supported Sizes in MB 1, 4, 8, 16
(see Note)
Maximum DRAM 256 MB
Virtual Memory 1 GB
Soldered VRAM 1 MB
Number of VRAM Slots 4
Note: Use 80 ns or faster VRAM SIMMs. The
Macintosh Quadra 900 and 950 use only
256K of each 512K VRAM SIMM installed.
DRAM Configurations
8 MB The Quadra 900 and 950 logic
boards have no soldered DRAM.
A total of 8 MB of memory (one
8 MB SIMM) is standard.
Up to
256 MB
Use 1, 4, or 16 MB 30-pin
SIMMs.
VRAM Configurations
2 MB Install four 256K or two 512K
VRAM SIMMs.