...because we can't all be on the bleeding edge...





3000B 80386SX-20

EVEREX SYSTEMS, INC.

3000B 80386SX-20

Processor

80386SX

Processor Speed

20MHz

Chip Set

Suntac

Max. Onboard DRAM

8MB

Cache

64KB

BIOS

AMI

Dimensions

355mm x 304mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Front panel display

J1

External battery

J4

Speaker

J2

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

J6

N/A

Factory configured - do not alter

W7

Open

Factory configured - do not alter

W8

Closed

I/O bus (8-bit) speed select 5 wait states

W2

pins 1 & 2 closed

 

I/O bus (8-bit) speed select 4 wait states

W2

pins 2 & 3 closed

Power on speed select fast/switchable from keyboard

W3

pins 2 & 3 closed

 

Power on speed select slow

W3

pins 1 & 2 closed

 

Power on speed select fast

W3

Open

I/O bus (16-bit) speed select 2 wait states

W5

pins 2 & 3 closed

 

I/O bus (16-bit) speed select 1 wait states

W5

pins 1 & 2 closed

Monitor type select monochrome

W9

Closed

 

Monitor type select color

W9

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(2) 256K x 9

(2) 256K x 9

NONE

NONE

2MB

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

NONE

NONE

4MB

(2) 1M x 9

(2) 1M x 9

NONE

NONE

6MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

NONE

8MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

DRAM SWITCH CONFIGURATION

Size

SW1/1

SW1/2

SW1/3

SW1/4

1MB

On

On

On

On

2MB

On

On

On

Off

2MB

On

Off

Off

On

4MB

On

Off

On

Off

6MB

On

Off

Off

Off

8MB

Off

Off

Off

Off

DRAM JUMPER CONFIGURATION

Size

W4

W6

1MB

pins 1 & 2 closed

pins 1 & 2 closed

2MB

pins 1 & 2 closed

pins 1 & 2 closed

2MB

pins 2 & 3 closed

pins 2 & 3 closed

4MB

pins 2 & 3 closed

pins 2 & 3 closed

6MB

pins 2 & 3 closed

pins 2 & 3 closed

8MB

pins 2 & 3 closed

pins 2 & 3 closed

SRAM CONFIGURATION

Size

Bank 3

64KB

(9) 64K x 1

Notes:Cache location & chip sizes are unidentified.