MITAC INTERNATIONAL CORPORATION

IH 4125

Processor

80486SX/80486DX

Processor Speed

16/20/25/33MHz

Chip Set

ETEQ

Max. Onboard DRAM

32MB

Cache

None

BIOS

AMI

Dimensions

240mm x 220mm

I/O Options

None

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J1

Power LED & keylock

J4

Turbo LED

J2

Speaker

J5

Turbo switch

J3

External battery

JP1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Battery type select internal

JP2

Closed

 

Battery type select external

JP2

Open

»

Monitor type select color

JP4

Closed

 

Monitor type select monochrome

JP4

Open

»

Clock phase select dual

JP7

Closed

 

Clock phase select single

JP7

pins 1 & 2 closed

»

Clock source select OSC1

JP8

Closed

 

Clock source select OSC2

JP8

pins 1 & 2 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

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 4M x 9

CPU TYPE CONFIGURATION

Type

JP11

JP12

JP13

80486SX

Open

Open

pins 1 & 2 closed

80486DX

Closed

Closed

pins 2 & 3 closed