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Memory
4MB RAM standard soldered on main
system board; expandable using 1MB,
4MB, 16MB, or 64MB SIMMs to 68MB
(maximum); SIMMs must be 36-bit,
fast-page mode type with 70 ns (or faster)
access speed
ROM
128KB system BIOS ROM and SETUP code
located in FLASH memory device on CPU
card; 64KB boot ROM contained in
EPROM on main system board
video RAM
1MB VRAM on main system board;
additional 1MB VRAM on optional
enhanced video daughterboard (2MB
VRAM maximum)
Shadow RAM
Automatic shadowing of system and VGA
BIOS ROM into RAM; shadow RAM
address control selectable through SETUP
Cache
8KB of internal cache (built into the
microprocessor); cache testing and address
control selectable through SETUP
Virtual cache
Epson proprietary VirtualCache feature
automatically creates a “virtual cache”
buffer the size of maximum system
memory
A-2
Specifications