UNIDENTIFIED

TURBO XT

Processor

8088

Processor Speed

8/10MHz

Chip Set

None

Max. Onboard DRAM

640MB

Cache

None

BIOS

ERSO/DTK

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

8087

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

P4

Turbo switch

JP7

Turbo switch

JP5

Keylock

JP8

Turbo switch

JP6

Power LED & Turbo LED

JP9

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Factory configured - do not alter

JP1

N/A

»

Factory configured - do not alter

SW1/switch 1

Off

»

NPU enabled

SW1/switch 2

Off

 

NPU disabled

SW1/switch 2

On

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

JP3

JP3A

JP4

JP4A

256KB

(8) 4164

(8) 4164

(8) 4164

(8) 4164

Open

Closed

Open

Closed

256KB

(8) 41256

NONE

NONE

NONE

Closed

Open

Closed

Open

512KB

(8) 41256

(8) 41256

NONE

NONE

Closed

Open

Closed

Open

640KB

(8) 41256

(8) 41256

(8) 4164

(8) 4164

Closed

Open

Closed

Open

DRAM JUMPER CONFIGURATION

Size

SW1/switch 3

SW1/switch 4

128KB

Off

On

192KB

On

Off

256KB

Off

Off

MONITOR TYPE SELECTION

Type

SW1/switch 5

SW1/switch 6

None

On

On

Monochrome

Off

Off

Color 40 x 25

Off

On

Color 80 x 25

On

Off

FLOPPY DRIVE CONFIGURATION

Number of drives

SW1/switch 7

SW1/switch 8

1

On

On

2

Off

On

3

On

Off

4

Off

Off