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  | |