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TXM/10-IV

UNIDENTIFIED

TXM/10-IV

Processor

8088

Processor Speed

4.77/10MHz

Chip Set

Unidentified

Max. Onboard DRAM

1MB

Cache

None

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

8087

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

JP7

Turbo switch

JP10

Reset switch

JP8

Keylock

JP11

Turbo LED

JP9

Power LED

JP12

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Parity enabled

JP6

Open

 

Parity disabled

JP6

Closed

Factory configured - do not alter

SW1/1

Off

NPU disabled

SW1/2

On

 

NPU enabled

SW1/2

Off

Factory configured - do not alter

SW1/3

Off

Factory configured - do not alter

SW1/4

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2A

Bank 3A

Bank 2B

Bank 3B

Bank 2C

Bank 3C

256KB

(2)44256

NONE

NONE

NONE

NONE

NONE

NONE

NONE

512KB

(2)44256

(2)44256

NONE

NONE

NONE

NONE

NONE

NONE

640KB

(2)44256

(2)44256

NONE

NONE

(2)4464

(2)4464

NONE

NONE

640KB

(2)44256

(2)44256

NONE

NONE

(2)4164

(2)4164

(6)4164

(6)4164

1MB

(2)44256

(2)44256

(2)44256

(2)44256

NONE

NONE

NONE

NONE

DRAM PARITY CONFIGURATION

Size

P 0

P 1

P 2A

P 3A

P 2B

P 3B

P 2C

P 3C

256KB

(1)41256

NONE

NONE

NONE

NONE

NONE

NONE

NONE

512KB

(1)41256

(1)41256

NONE

NONE

NONE

NONE

NONE

NONE

640KB

(1)41256

(1)41256

NONE

NONE

NONE

NONE

(1)4164

(1)4164

640KB

(1)41256

(1)41256

NONE

NONE

NONE

NONE

(2)4164

(2)4164

1MB

(1)41256

(1)41256

(1)41256

(1)41256

NONE

NONE

NONE

NONE

DRAM SWITCH CONFIGURATION

Size

SW1/9

SW1/10

256KB

On

On

512KB

Off

On

640KB

On

Off

1MB

Off

Off

VIDEO TYPE CONFIGURATION

Type

SW1/5

SW1/6

CGA (40 x 25)

Off

On

CGA (80 x 25)

On

Off

EGA/VGA

On

On

MGA

Off

Off

FLOPPY DRIVE CONFIGURATION

Floppy drives installed

SW1/7

SW1/8

1

On

On

2

Off

On

3

On

Off

4

Off

Off

BIOS CONFIGURATION

Setting

CN3

27128 installed in U80

pins 2 & 17, 3 & 16, 5 & 14, 7 & 12 closed

27256 installed in U65 & 2764 installed in U80

pins 1 & 18, 4 & 15, 6 & 13 closed