INFORMTECH INTERNATIONAL, INC.

IT386LM CACHE

   

Processor

80386DX

Processor Speed

33/40MHz

Chip Set

Headland

Max. Onboard DRAM

32MB

Cache

32/128KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387/3167

   

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP105

Turbo LED

P3

Auxiliary keyboard

JP107

Reset switch

P7

Speaker

P1

Turbo switch

P8

Power LED & keylock

P2

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

I/O recovery delay (for slower cards) disabled

JP13

Open

 

I/O recovery delay (for slower cards) enabled

JP13

Closed

»

CPU speed select 33MHz

JP101

pins 1 & 2 closed

 

CPU speed select 40MHz

JP101

pins 2 & 3 closed

»

NPU mode select synchronous with CPU

JP102

Open

 

NPU mode select asynchronous with CPU

JP102

Closed

»

CMOS memory normal operation

JP104

Open

 

CMOS memory clear

JP104

Closed

»

Battery select internal 3.6VDC with current limiting resistor

JP106

pins 1 & 3 closed

 

Battery select internal 4.5VDC alkaline

JP106

pins 3 & 4 closed

 

Battery select external 6VDC

JP106

pins 2 & 4 closed

 

Battery select external 6VDC with current limiting resistor

JP106

pins 1 & 2 closed

»

Monitor type select color

P4

Closed

 

Monitor type select monochrome

P4

Open

Note:Jumpers JP101 and JP102 may not be present on all board revisions.

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) 256K x 9

(4) 1M 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

CACHE CONFIGURATION

Size

Bank 0

32KB

(4) 8K x 8

128KB

(4) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP10

32KB

Closed

128KB

Open

Note:Jumper JP10 may be named JP100 on some board revisions.