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HARD DISK/FLOPPY CONTROLLER

UNIDENTIFIED

HARD DISK/FLOPPY CONTROLLER

(AT COMPATIBLE)

Card Type

Hard drive controller

Hard Drives supported

Two ST-506/412 drives

Floppy drives supported

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

Data Bus

16-bit ISA

Card Size

Full length, full-height

   

CONNECTIONS

Function

Label

Function

Label

34-pin control cable connector - hard drive

J1

34-pin cable connector - floppy drive

J4

20-pin data cable connector - drive 0

J2

37-pin hard drive connector - external

J5

20-pin data cable connector - drive 1

J3

4-pin connector - drive active LED

J6

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

W1

Pins 1 & 2 closed

Factory configured - do not alter

W2

Pins 1 & 2 closed

Factory configured - do not alter

W4

Open

Primary address for floppy drive is 3F2h, 3F4/3F7h

W5

Open

 

Secondary address for floppy drive is 372h, 374/377h

W5

Closed

Primary address for hard drive is 1F0/1F7h

W6

Open

 

Secondary address for hard drive is 170/177h

W6

Closed

Factory configured - do not alter

W7

Open

Note:Location of pin 1 is unidentified.