Specifications

Memory Performa - 6
Performa 475, 476
The Performa 475 and 476
each have 4 MB of soldered
DRAM. You can expand the
memory of each machine to a
total of 36 MB by installing
DRAM SIMMs.
Single-sided SIMMs in 1, 4,
8, and 16 MB densities are
supported, and double-sided
SIMMs in 2, 4, and 32 MB
densities are also supported.
VRAM Note: These computers come
standard with two 256K VRAM SIMMs
installed. You can upgrade the machine to 1
MB of VRAM by replacing the 256K SIMMs
with two 512K, 68-pin, 80 ns VRAM
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 (See VRAM
Note)
Number of VRAM Slots 2
DRAM Configurations
4 MB The Performa 475 and 476
logic boards have 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 Install two 256K VRAM SIMMs.
1 MB Install two 512K VRAM SIMMs.