ATLANTIC COMPUTER PRODUCTS, INC.

486 33 CACHE

Processor

80486DX

Processor Speed

33MHz

Chip Set

ETEQ

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI/Award/MR

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

J3

Speaker

JP11

Reset switch

J4

Power LED & keylock

JP27

External battery

JP10

Turbo LED

JP28

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CMOS memory normal operation (internal battery)

JP9

pins 1 & 2 closed

 

CMOS memory normal operation (external battery)

JP9

pins 1 & 2 open

 

CMOS memory clear

JP9

pins 2 & 3 closed

Factory configured - do not alter

JP29

unknown

Factory configured - do not alter

JP33

unknown

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 1 M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 256K x 9

(4) 4M x 9

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

SRAM JUMPER CONFIGURATION

Size

JP17

JP19

JP23

JP24

JP25

64KB

open

open

pins 2 & 3

closed

pins 2 & 3

closed

open

128KB

closed

open

pins 1 & 2

closed

pins 2 & 3

closed

closed

256KB

closed

closed

pins 1 & 2

closed

pins 1 & 2

closed

closed

SRAM CONFIGURATION

Size

Cache SRAM

Location

64KB

(8) 8K x 8

Bank 0

128KB

(16) 8K x 8

Banks 0 & 1

256KB

(8) 32K x 8

Banks 0