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AGI 4000A EV-1895

EVEREX SYSTEMS, INC.

AGI 4000A EV-1895

Processor

80486DX

Processor Speed

25/33MHz

Chip Set

C & T

Max. Onboard DRAM

16MB

SRAM Cache

64/256KB

BIOS

AMI

Dimensions

350mm x 320mm

I/O Options

32-bit external memory card

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

Front panel connector

J4

32-bit memory card

S1

Speaker

J5

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

W1

Open

Factory configured - do not alter

W7

Unknown

CPU speed select High

W6

Open

 

CPU speed select normal

W6

pins 1 & 2 closed

 

CPU speed select switchable via the keyboard

W6

pins 2 & 3 closed

Monitor type select color

W7

pins 1 & 2 closed

 

Monitor type select monochrome

W7

pins 2 & 3 closed

Speaker select enabled

W20

Closed

 

Speaker select disabled

W20

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

W8

W9

1MB

(4) 256K x 9

NONE

NONE

NONE

pins 2 & 3

pins 2 & 3

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

pins 2 & 3

pins 2 & 3

4MB

(4) 1M x 9

NONE

NONE

NONE

pins 1 & 2

pins 1 & 2

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

pins 1 & 2

pins 1 & 2

10MB

(4) 1M x 9

(4) 1M x 9

(4) 256K x 9

(4) 256K x 9

pins 1 & 2

pins 1 & 2

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

pins 1 & 2

pins 1 & 2

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

pins 1 & 2

pins 1 & 2

Note:10, 12 and 16MB configurations require the installation of the EV-1896 memory card.

Pins designated should be in the closed position.

DRAM SWITCH CONFIGURATION

Size

SW1/switch 1

SW1/switch 2

SW1/switch 3

SW1/switch 4

1MB

On

Off

On

On

2MB

Off

Off

On

Off

4MB

On

On

On

On

8MB

Off

Off

On

Off

10MB

Off

On

On

On

12MB

Off

On

Off

On

16MB

Off

On

Off

Off

CACHE CONFIGURATION

Size

Cache

TAG

64KB

(10) 16K x 4

(1) 16K x 1

256KB

(10) 64K x 4

(1) 64K x 1

CACHE JUMPER CONFIGURATION

Size

W2

W3

64KB

pins 1 & 2 closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed