Epson ExpressStation User's Guide Page 89

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Appendix B
Specifications
CPU and Memory
CPU
System memory
BIOS
Video RAM
Cache memory
Math coprocessor
Intel 25 MHz 486SX, or 33 MHz 486DX
microprocessor; simulated 8 MHz
processor speed selectable through
software or keyboard command
4MB RAM standard on one 4MB SIMM;
expandable using 1MB, 2MB, 4MB, or 8MB
SIMMs up to 32MB (when 8MB SIMMs are
available); SIMMs must be 80ns, 36-bit,
72-pin, gold-leaded, fast-page mode type
256KB two-part system BIOS including
video BIOS in two FLASH ROM devices;
write-protection available through jumper
and software
512KB DRAM; expandable to 1MB using
four 256K x 4, fast-page, 60ns video RAM
chips
8KB internal cache integrated into the
microprocessor; optional 128KB Intel 485
TurboCache module can be installed on
main system board (128KB cache module
standard on 486/33 model); write-
through, two-way set associative cache
memory and controller; operation
controllable through software
Socket for optional Intel 25 MHz 487SX
coprocessor (allowable on 486SX/25
model only)
Specifications B-l
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