Appendix A

Specifications

CPU and Memory

32-bit CPU

80386SX microprocessor, 20 MHz system

 

 

clock speed, 20 MHz or 10 MHz

 

 

processor speed; user selectable

 

 

0 wait state memory access speed at

 

 

20MHz

System

memory

2MB RAM standard; expandable using

 

 

256KB, lMB, or 4MB SIMMs up to 24MB

 

 

(the first 16MB can be extended or

 

 

expanded memory; above 16MB can be

 

 

only expanded memory); SIMM access

 

 

speed must be 80ns or faster

ROM

 

128KB (includes system BIOS and VGA

 

 

BIOS)

Shadow

RAM

0 wait state access speed; system ROM

 

 

BIOS and video ROM can be copied into

 

 

RAM through SETUP

Math coprocessor

80387SX, 20 MHz support

(optional)

 

Clock/calendar

Real-time clock, calendar, and CMOS

 

 

RAM for configuration; battery backup

Battery

 

Replaceable, 3.6V lithium battery;

 

 

3-5 year life

Specifications A-1