UNIDENTIFIED

MT-456

Card Type

Multi I/O card

Chipset/Controller

Unidentified

I/O Options

Parallel port, serial ports (2), game port

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 2 - internal

J3

Game port

J5

Serial port 1 - internal

J4

Parallel port

J6

SERIAL PORT 1 CONFIGURATION

COM/Address

J1/JP1

J1/JP2

COM1/3F8h

Pins 1 & 2 closed

Pins 1 & 2 closed

 

COM3/3E8h

Pins 2 & 3 closed

Pins 1 & 2 closed

 

Disabled

N/A

Pins 2 & 3 closed

SERIAL PORT 1 INTERRUPT SELECT

IRQ

J2/A

J2/B

J2/C

J2/D

IRQ4

Pins 2 & 3 closed

Pins 2 & 3 open

Pins 2 & 3 open

Pins 2 & 3 open

 

IRQ3

Pins 2 & 3 open

Pins 2 & 3 closed

Pins 2 & 3 open

Pins 2 & 3 open

 

IRQ5

Pins 2 & 3 open

Pins 2 & 3 open

Pins 2 & 3 closed

Pins 2 & 3 open

 

IRQ9

Pins 2 & 3 open

Pins 2 & 3 open

Pins 2 & 3 open

Pins 2 & 3 closed

SERIAL PORT 2 CONFIGURATION

COM/Address

J1/JP3

J1/JP4

COM2/2F8h

Pins 1 & 2 closed

Pins 1 & 2 closed

 

COM4/2E8h

Pins 2 & 3 closed

Pins 1 & 2 closed

 

Disabled

N/A

Pins 2 & 3 closed

SERIAL PORT 2 INTERRUPT SELECT

IRQ

J2/A

J2/B

J2/C

J2/D

IRQ3

Pins 1 & 2 open

Pins 1 & 2 closed

Pins 1 & 2 open

Pins 1 & 2 open

 

IRQ4

Pins 1 & 2 closed

Pins 1 & 2 open

Pins 1 & 2 open

Pins 1 & 2 open

 

IRQ5

Pins 1 & 2 open

Pins 1 & 2 open

Pins 1 & 2 closed

Pins 1 & 2 open

 

IRQ9

Pins 1 & 2 open

Pins 1 & 2 open

Pins 1 & 2 open

Pins 1 & 2 closed

PARALLEL PORT CONFIGURATION

LPT/Address

J1/JP5

J1/JP6

LPT1/378h

Pins 1 & 2 closed

Pins 1 & 2 closed

 

LPT2/278h

Pins 2 & 3 closed

Pins 1 & 2 closed

 

Disabled

N/A

Pins 2 & 3 closed

PARALLEL PORT INTERRUPT SELECT

IRQ

J2/E

IRQ5

Pins 2 & 3 closed

IRQ7

Pins 1 & 2 closed

GAME PORT

Setting

J1/JP7

Enabled

Pins 1 & 2 closed

 

Disabled

Pins 2 & 3 closed