Specifications

Memory Performa - 15
Performa 640
The Performa 640 has 8 MB
of DRAM: 4 MB soldered and a
4 MB SIMM in one slot. Up to
52 MB is available (4 MB
soldered, 32 MB in one SIMM
slot, and 16 MB in the other
SIMM slot on the DOS Card).
The DOS Compatible board has
a 4 MB SIMM installed and is
expandable to 32 MB.
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 1 MB
Number of VRAM Slots None
DRAM Configurations
8 MB The Performa 640 has 8 MB of
DRAM: 4 MB soldered, 4 MB
SIMM in one slot.
52 MB Use various combinations up to
52 MB of 72-pin SIMMs.