POLOTEC, INC.

MBA-503B

Processor

80386DX/CX486DLC

Processor Speed

25/33/40MHz

Chip Set

Micronics

Max. Onboard DRAM

32MB

SRAM Cache

None

BIOS

AMI

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

D4

Reset switch

J5

External battery

J3

Speaker

J6

Parallel port

J4

Power LED & keylock

J7

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

RTC type select 146818

JP1

JP3

pins 2 & 3 closed

closed

 

RTC type select DS1287

JP1

JP3

pins 1 & 2 closed

open

»

CMOS memory normal operation

JP2

pins 1 & 2 closed

 

CMOS memory clear

JP2

pins 2 & 3 closed

»

Monitor type select color

JP4

closed

 

Monitor type select monochrome

JP4

open

 

NPU select 80387

JP5

pins 1 & 2 closed

 

NPU select 3167 or none

JP5

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) 1M x 9

(4) 256K 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