Hello, I am selling one of my two vintage original A2091 cards, which I've had for years. This card was upgraded over the past few years, the only upgrade I didn't get around to is the GuruROM. Otherwise, it is fully populated.
It has been in a working system and put through its paces. However, being vintage it isn't an everyday usage item. It has always been handled with care and is in excellent condition. Memory was also tested by AmigaTestKit and showed no errors.
Asking 200 dollars plus shipping.
It has been in a working system and put through its paces. However, being vintage it isn't an everyday usage item. It has always been handled with care and is in excellent condition. Memory was also tested by AmigaTestKit and showed no errors.
Asking 200 dollars plus shipping.
| Company Commodore, USA | Date 1991 | Amiga A2000, A3000, A4000 | Interface Zorro II | Autoconfig ID 514 / 2,3,10 |
- SCSI controller PCB revision 4.0 modified
- Upgraded Western Digital WD33C93A-PL 08
- Upgraded DMAC 390563-02 (the same DMAC custom chip for DMA transfers as the A3000)
- knows the Rigid Disk Block and SCSI Direct protocols
- the connectors and LED are not installed but their place is visible on the card
- 50 pin internal SCSI header
- DB25 external connector
- a 3.5" hard disk can be mounted on the card
- 16 kB autoboot ROM (can be disabled) - autobooting requires at least Kickstart 1.3
- upgraded v7.0 of the ROM from the original v6 (necessary for 68040 machines)
- supports SCSI network sharing
- supported by Linux, NetBSD and OpenBSD
- A-Max II driver (scsi.amhd)
- fully populated 2mb 80ns memory installed (GM7IC4256A-80)
- sixteen DIP sockets accept 0.5, 1 or 2 MB RAM
- supports 256k×4 (44256) chips, 120 ns or faster
- cannot use DMA to transfer data to 32 bit fast RAM
- if Zorro II DMA memory is not available the driver falls back to programmed I/O transfers
- performs extremely slow in the A4000 because of the above mentioned two problems
