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7045

MEMOREX TELEX CORPORATION

7045

Processor

80286

Processor Speed

8/12MHz

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

8MB

Maximum Video Memory

Unidentified

Cache

None

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, parallel port, serial ports (2), VGA feature connector, VGA port

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

J14

Power LED & keylock

J20

Serial port 1

J15

External battery

J21

Serial port 2

J16

Keyboard connector

J22

Parallel port

J17

Turbo switch

J23

Reset switch

J18

Floppy drive interface

J24

Speaker

J19

VGA feature connector

J25

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

J13

Unidentified

»

Serial port 1 IRQ select IRQ4

JP1

Pins 1 & 2 closed

 

Serial port 1 IRQ select IRQ3

JP1

Pins 2 & 3 closed

 

Serial port 2 IRQ select IRQ4

JP2

Pins 1 & 2 closed

 

Serial port 2 IRQ select IRQ3

JP2

Pins 2 & 3 closed

»

Factory configured - do not alter

JP3

Open

»

BIOS type select 27256

JP4

Pins 2 & 3 closed

 

BIOS type select 27128

JP4

Pins 1 & 2 closed

»

CMOS memory normal operation

JP6

Pins 2 & 3 closed

 

CMOS memory clear

JP6

Pins 1 & 2 closed

 

IDE controller card not installed

JP7

Pins 1 & 2 closed

 

IDE controller card installed

JP7

Pins 2 & 3 closed

»

Factory configured - do not alter

JP8

Open

»

Floppy drive interface enabled

JP9

Pins 1 & 2 closed

 

Floppy drive interface disabled

JP9

Pins 2 & 3 closed

»

Factory configured - do not alter

JP10

Open

»

Floppy drive address select 3FXh

JP11

Pins 2 & 3 closed

 

Floppy drive address select 37Xh

JP11

Pins 1 & 2 closed

»

VGA ROM select 8-bit

JP12

Pins 2 & 3 closed

 

VGA ROM select 16-bit

JP12

Pins 1 & 2 closed

»

Factory configured - do not alter

JP13

Open

»

Serial port 2 address select 2F8h

JP14

Pins 1 & 2 closed

 

Serial port 2 address select 3F8h

JP14

Pins 2 & 3 closed

»

Serial port 1 address select 3F8h

JP15

Pins 2 & 3 closed

 

Serial port 1 address select 2F8h

JP15

Pins 1 & 2 closed

»

Parallel port address select 378h

JP16

Pins 2 & 3 closed

 

Parallel port address select 278h

JP16

Pins 1 & 2 closed

»

Feature clock enabled

JP17

Pins 1 & 2 closed

 

36MHz clock enabled

JP17

Pins 2 & 3 closed

»

On board video enabled

JP18

Pins 2 & 3 closed

 

On board video disabled

JP18

Pins 1 & 2 closed

USER CONFIGURABLE SETTINGS (CON’T)

Function

Label

Position

»

Parallel port IRQ select IRQ7

JP19

Pins 1 & 2 closed

 

Parallel port IRQ select IRQ5

JP19

Pins 2 & 3 closed

»

Monitor type select EGA

JP20

Pins 1 & 2 closed

 

Monitor type select color/monochrome

JP20

Pins 2 & 3 closed

»

Factory configured - do not alter

JP21

Unidentified

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

8MB

(4) 1M x 9

(4) 1M x 9

Note: The location of banks 0 & 1 are unidentified.

CPU SPEED SELECTION

Speed

JP5

8MHz

Pins 2 & 3 closed

12MHz

Pins 1 & 2 closed