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American Research Corporation PROTURBO 88

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Jumper Settings

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

31059-1.png

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

See Also