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PROTURBO 88

AMERICAN RESEARCH CORPORATION

PROTURBO 88

Processor

8088

Processor Speed

4.77/9.54MHz

Chip Set

None

Max. Onboard DRAM

640KB

Cache

None

BIOS

ARC

Dimensions

330mm x 218mm

I/O Options

EGA port, floppy drive interface, game port, parallel port, serial ports (2)

NPU Options

8087

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

BAT

Parallel port

CN7

Riser card

CN1

Speaker

CN9

Floppy interface

CN2

Game port

CN10

EGA interface

CN3

Serial port 2

CN11

Serial port 1

CN6

External keyboard

KB1

Note:The location of the CPU, NPU and SW1 are unidentified.

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Factory configured - do not alter

J2

unknown

Parallel port select LPT1 interrupt IRQ7 at 378-37F

J7

pins 1 & 2 closed

 

Parallel port select LPT2 interrupt IRQ5 at 278-27F

J7

pins 3 & 4 closed

Factory configured - do not alter

J8

pins 1 & 2 closed

Factory configured - do not alter

J8

pins 3 & 4 closed

Factory configured - do not alter

J10

N/A

Factory configured - do not alter

J11

N/A

Factory configured - do not alter

J12

N/A

DRAM test at power-on enabled

SW1/1

Off

 

DRAM test at power-on disabled

SW1/1

On

NPU disabled

SW1/2

On

 

NPU enabled

SW1/2

Off

FLOPPY DRIVE A CONFIGURATION

Type

SW1/3

SW1/4

None

On

On

360KB

On

On

720KB

On

Off

1.2MB

Off

On

1.44MB

Off

Off

FLOPPY DRIVE B CONFIGURATION

Type

SW1/7

SW1/8

None

On

On

360KB

On

On

720KB

On

Off

1.2MB

Off

On

1.44MB

Off

Off

MONITOR CONFIGURATION

Type

SW1/5

SW1/6

EGA

On

On

CGA (80 x 25)

On

Off

CGA (40 x 25)

Off

On

Monochrome

Off

Off