Specifications

Memory Quadra/Centris - 1
Quadra 605
The Quadra 605 has 4 MB of
DRAM soldered to the logic
board and one expansion slot.
Single-sided SIMMs are
supported in 1, 4, 8, and 16
MB densities; double-sided
SIMMs are supported in 2, 4,
and 32 MB densities.
VRAM Note: The Quadra 605 comes with
two 256K VRAM SIMMs installed. You can
upgrade the VRAM to a total of 1 MB by
replacing the two 256K SIMMs with two
512K SIMMs.
Memory Information
DRAM Speed 80 ns
SIMM Type 72-pin
Soldered DRAM 4 MB
Number of SIMM Slots 1
Supported Sizes in MB 1, 2, 4, 8, 16,
32
Maximum DRAM 36 MB
Virtual Memory 1 GB
Soldered VRAM None
Number of VRAM Slots 2
DRAM Configurations
4 MB The Macintosh Quadra 605 logic
board has 4 MB of soldered
DRAM.
5 MB Install one 1 MB SIMM.
6 MB Install one 2 MB SIMM.
8 MB Install one 4 MB SIMM.
12 MB Install one 8 MB SIMM.
20 MB Install one 16 MB SIMM.
36 MB Install one 32 MB SIMM.
VRAM Configurations
512K The Quadra 605 logic board has
two 256K VRAM SIMMs.
1 MB Install two 512K VRAM SIMMs.