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STEP 386SX20 GATE ARRAY EV-18107C

EVEREX SYSTEMS, INC.

STEP 386SX20 GATE ARRAY EV-18107C

Processor

80386SX

Processor Speed

20MHz

Chip Set

C & T

Max. onboard DRAM

16MB

Cache

64KB

BIOS

AMI

Dimensions

355mm x 304mm

I/O Options

Floppy drive interface, IDE interface, parallel port, serial ports (2)

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

J7

Floppy drive interface

U100

IDE interface

J8

Serial port 2

U106

Speaker

JP2

Serial port 1

U107

External battery

JP9

LED connector

LED

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Cache LED disabled

J3

Closed

 

Cache LED enabled

J3

Open

BIOS type select 27256

JP8

Open

 

BIOS type select 27512

JP8

Closed

Floppy drive interface enabled

JP9

pins 1 & 2 closed

 

Floppy drive interface disabled

JP9

pins 3 & 4 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(2) 256K x 9

NONE

1MB

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

2.5MB

(2) 256K x 9

(2) 1M x 9

4MB

(2) 1M x 9

(2) 1M x 9

8MB

(2) 4M x 9

NONE

8.5MB

(2) 256K x 9

(2) 4M x 9

10MB

(2) 1M x 9

(2) 4M x 9

16MB

(2) 4M x 9

(2)4M x 9

ONBOARD SERIAL/PARALLEL CONFIGURATION

Port

Connector

IRQ

Address

COM1

U107

IRQ4

3F8h

COM2

U106

IRQ3

2F8h

LPT2

J7

IRQ7

378h

Note:The onboard serial & parallel port configurations are fixed and cannot be altered or disabled.