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Amiga A2091 SCSI Card A2000 A3000 A4000
SKU
amiga-a2091scsicard
£162.00
SKU
amiga-a2091scsicard
SCSI controller
- Western Digital 33C93
- Uses the same DMAC custom chip for DMA transfers as the A3000
- Knows the Rigid Disk Block and SCSI Direct protocols
- Built in XT IDE (8 bit) hard disk controller - 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
- revision 7.0 of the ROM is necessary for 68040 machines
- Supports SCSI network sharing
- Supported by Linux, NetBSD and OpenBSD
- A-Max II driver (scsi.amhd)
Memory
- 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
Condition: Used
Availability: Out of stock