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IT-AM33/40-DLC

INFORMTECH INTERNATIONAL, INC.

IT-AM33/40-DLC

Processor

80386DX/AMD386DX/CX486DLC

Processor Speed

16/25/33/40MHz

Chip Set

Maconics

Max. Onboard DRAM

32MB

Cache

None

BIOS

AMI

Dimensions

220mm x 170mm

I/O Options

None

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

D5

Speaker

J5

External battery

J3

Turbo switch

J6

Power LED & keylock

J4

Reset switch

J7

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

MC146818 enabled

JP1

pins 2 & 3 closed

 

DS1287 enabled

JP1

pins 1 & 2 closed

Monitor type select monochrome

JP2

Open

 

Monitor type select color

JP2

Closed

CPU brand selection INTEL/AMD 80386DX CPU

JP3

pins 1 & 2 closed

 

CPU brand selection CYRIX 486DLC CPU

JP3

pins 2 & 3 closed

CMOS memory normal operation

JP4

pins 1 & 2 closed

 

CMOS memory data clear

JP4

pins 2 & 3 closed

Note:The exact location of JP3 is unidentified by the manufacturer.

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) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 4M x 9

(4) 256K x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CLOCK GENERATOR FREQUENCY CONFIGURATION

Clock Speed

CPU Speed

JS1

JS2

JS3

80MHz

40MHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

66MHz

33MHz

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

50MHz

25MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

33MHz

16MHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed