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





IT486SMV MINI (Ver. 1.00)

INFORMTECH INTERNATIONAL, INC.

IT486SMV MINI (Ver. 1.00)

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2

Processor Speed

20/25/33/50(internal)/66(internal)MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

SRAM Cache

64/128/256KB

BIOS

AMI

Dimensions

220mm x 230mm

I/O Options

32-bit VESA card slot (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP2

Turbo switch

JP15

Reset switch

JP3

Turbo LED

JP16

Power LED & keylock

JP9

32-bit VESA local bus slots

S1 & S2

Speaker

JP10

 

 

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

JP5

open

CMOS memory normal operation

JP6

open

 

CMOS memory clear

JP6

closed

Wait states select zero

JP102

pins 1 & 2 closed

 

Wait state select one

JP102

pins 2 & 3 closed

Local bus speed select £ 33MHz

JP103

pins 1 & 2 closed

 

Local bus speed select > 33MHz

JP103

pins 2 & 3 closed

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

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CPU TYPE CONFIGURATION

Type

Jumper JP12 & JP13

Jumper JP29 & JP30

80486DX2

pins 1 & 2 closed

pins 1 & 2 closed

ODP486SX

pins 1 & 2 closed

pins 2 & 3 closed

80486DX

pins 1 & 2 closed

pins 1 & 2 closed

80487SX

pins 1 & 2 closed

pins 2 & 3 closed

80486SX

pins 2 & 3 closed

pins 2 & 3 closed

CPU SPEED CONFIGURATION

Speed

Jumper JP7A

Jumper JP7B

Jumper JP7C

66(internal)MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

50(internal)MHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

33MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

25MHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

20MHz

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

SRAM JUMPER CONFIGURATION

Size

Jumper JP8A

Jumper JP8B

Jumper JP8D

Jumper JP8E

64KB

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

128KB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

SRAM CONFIGURATION

Size

Max. Cacheable Memory

Cache SRAM

Location

TAG

64KB

16MB

(8) 8K x 8

Banks 0 & 1

(1) 8K x 8

128KB

32MB

(4) 32K x 8

Bank 0

(1) 8K x 8

256KB

32MB

(8) 32K x 8

Banks 0 & 1

(1) 32K x 8