A4091 rev B
|
Company
Commodore / DKB, USA |
Date
1993 |
Amiga
A3000, A4000 |
Interface
Zorro III |
Autoconfig ID
513 / 84 |
Fast SCSI 2 DMA controller
- NCR 53C710
- autoboot ROM [image]
- 50 pin internal connector
- 50 pin HD Centronics external connector – expensive cables and terminators
- place for a 3.5″ hard disk on the card
- active SCSI bus termination
- no RAM option
- only works with Buster 11, either installed in A3000 or A4000
- does not work with A3640 equipped A3000s
- early, Commodore built boards booted only under Kickstart 3.x
- supported by Linux, NetBSD and OpenBSD
DIP switch settings:
| switch 1-3 | – SCSI ID |
| switch 4 | – fast bus: ON – disabled |
| switch 5 | – delayed autoboot: ON – enabled |
| switch 6 | – synchronous mode: ON – disabled |
| switch 7 | – termination: ON – disabled |
| switch 8 | – LUN: ON – enabled |
Driver / Installation Disk:
- A4091-4014.dms
install disk
68040.library v37.30 (18.1.93), setpatch v40.14 (7.10.93)
203 kB - A4091-4002.dms
install disk
68040.library v37.30 (18.1.93), setpatch v40.2 (17.2.93)
185 kB
work done:
- re-capped with Panasonics [the two 4.7 35V were already leaking]
- completely cleaned with soapy water and brush
- metal part polished
recap video: