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U3978

ATC/UNITRON COMPUTER & COMPUTER PARTS

U3978

Card Type

Hard drive controller card

Hard Drives supported

Two IDE drives

Floppy drives supported

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

I/O Options

Serial ports (2), parallel port

Data Bus

32-bit VESA Local Bus

Card Size

Full-length, full-height card

CONNECTIONS

Function

Location

Function

Location

40-pin primary IDE(AT) connector

J1

10-pin serial port 1 - internal

J5

4-pin connector - drive active LED

J2

10-pin serial port 2 - internal

J6

34-pin cable connector - floppy drive

J3

25-pin parallel port - external

J7

16-pin game port

J4

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Floppy drive interface enabled

JP6

Pins 1 & 2 closed

 

Floppy drive interface disabled

JP6

Pins 2 & 3 closed

Game port enabled

JP7

Pins 1 & 2 closed

 

Game port disabled

JP7

Pins 2 & 3 closed

IDE interface enabled

JP17

Pins 1 & 2 closed

 

IDE interface disabled

JP17

Pins 2 & 3 closed

PARALLEL PORT ADDRESS SELECTION

Setting

JP8

JP9

LPT2 (278h)

Pins 1 & 2 closed

Pins 1 & 2 closed

LPT3 (3BCh)

Pins 2 & 3 closed

Pins 1 & 2 closed

Disabled

N/A

Pins 2 & 3 closed

SERIAL PORT 1 ADDRESS SELECTION

Setting

JP12

JP13

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 2 ADDRESS SELECTION

Setting

JP10

JP11

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

PARALLEL PORT IRQ SELECTION

IRQ

JP14

5

Pins 2 & 3 closed

7

Pins 1 & 2 closed

PR4030 SELECTION

Setting

JP1

JP2

JP15

ID=000

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

I/O PORT ADDRESS SELECTION

Address

JP3

JP16

26h

Pins 1 & 2 closed

Pins 2 & 3 closed

2Ah

Pins 2 & 3 closed

Pins 2 & 3 closed

2Eh

Pins 1 & 2 closed

Pins 1 & 2 closed

34h

Pins 2 & 3 closed

Pins 1 & 2 closed