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AHA-2840A

ADAPTEC, INC.

AHA-2840A

Card Type

Hard drive controller card

Hard Drives supported

Up to 7 SCSI devices

Floppy drives supported

None

Data Bus

32-bit VESA Local Bus

Card Size

Full-length, full-height card

CONNECTIONS

Function

Location

Function

Location

4-pin LED connector

J1

50-pin SCSI connector - external

J4

50-pin SCSI connector - internal

J3

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Write-back enabled

J5

Closed

 

Write-back disabled

J5

Open

Factory configured - do not alter

S1/5

Reserved

Host adapter BIOS enabled

S1/8

Off

 

Host adapter BIOS disabled

S1/8

On

I/O ADDRESS SELECTION

Address

S1/1

S1/2

S1/3

S1/4

1C00h

Off

Off

Off

Off

 

2C00h

On

Off

Off

Off

 

3C00h

Off

On

Off

Off

 

4C00h

On

On

Off

Off

 

5C00h

Off

Off

On

Off

 

6C00h

On

Off

On

Off

 

7C00h

Off

On

On

Off

 

8C00h

On

On

On

Off

 

9C00h

Off

Off

Off

On

 

AC00h

On

Off

Off

On

 

BC00h

Off

On

Off

On

 

CC00h

On

On

Off

On

 

DC00h

Off

Off

On

On

 

EC00h

On

Off

On

On

 

FC00h

Off

On

On

On

 

Reserved

On

On

On

On

BIOS ADDRESS SELECTION

Address

S1/6

S1/7

 

C8000h

On

Off

 

D0000h

Off

On

D8000h

Off

Off

 

E0000h

On

On