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PRIME 2C MKIII

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