UNIDENTIFIED

PRIME 2C MKIII

Card Type

Hard drive controller

Hard Drives supported

Two IDE (AT) drives

Floppy drives supported

Two 360KB, 720KB, 1.2MB, or 1.44MB drives

Data Bus

16-bit ISA

Card Size

Half-length, half-height

   

CONNECTIONS

Function

Label

Function

Label

16-pin game port

CON1

10-pin serial port 2 - internal

CON5

10-pin serial port 1 - internal

CON2

40-pin IDE(AT) connector

CON6

25-pin parallel port - external

CON3

Drive active LED

CON7

34-pin cable connector - floppy drive

CON4

9-pin serial port - external

CON8

USER CONFIGURABLE SETTINGS

Function

Label

Position

Floppy drive interface enabled

J1

Pins 1 & 2 closed

Floppy drive interface disabled

J1

Pins 2 & 3 closed

Primary floppy drive enabled

J2

Pins 1 & 2 closed

Secondary floppy drive disabled

J2

Pins 2 & 3 closed

IDE(AT) interface enabled

J3

Pins 1 & 2 closed

IDE(AT) interface disabled

J3

Pins 2 & 3 closed

Primary IDE drive enabled

J4

Pins 1 & 2 closed

Secondary IDE drive disabled

J4

Pins 2 & 3 closed

Game port enabled

J11

Pins 1 & 2 closed

Game port disabled

J11

Pins 2 & 3 closed

PD0-PD7 output enabled

J16

Pins 1 & 2 closed

PD0-PD7 output disabled

J16

Pins 2 & 3 closed

PARALLEL PORT ADDRESS SELECTION

Setting

J9

J10

LPT1 (378h)

Pins 1 & 2 closed

Pins 1 & 2 closed

LPT2 (278h)

Pins 1 & 2 closed

Pins 2 & 3 closed

Disabled

Pins 2 & 3 closed

N/A

SERIAL PORT 1 ADDRESS SELECTION

Setting

J5

J6

COM1 (3F8h)

Pins 1 & 2 closed

Pins 1 & 2 closed

COM3 (3E8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

Disabled

Pins 2 & 3 closed

N/A

SERIAL PORT 2 ADDRESS SELECTION

Setting

J7

J8

COM2 (2F8h)

Pins 1 & 2 closed

Pins 1 & 2 closed

COM4 (2E8h)

Pins 1 & 2 closed

Pins 2 & 3 closed

Disabled

Pins 2 & 3 closed

N/A

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

J12/pins 1 & 2

J13/pins 1 & 2

J14/pins 1 & 2

J15/pins 1 & 2

IRQ3

Open

Closed

Open

Open

IRQ4

Open

Open

Closed

Open

IRQ5

Open

Open

Open

Closed

IRQ9

Closed

Open

Open

Open

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

J12/pins 2 & 3

J13/pins 2 & 3

J14/pins 2 & 3

J15/pins 2 & 3

IRQ3

Open

Closed

Open

Open

IRQ4

Open

Open

Closed

Open

IRQ5

Open

Open

Open

Closed

IRQ9

Closed

Open

Open

Open