Amiga Hardware DatabaseCompany Commodore, USA | Date 1992 | Amiga A3000, A4000 | Interface CPU slot |
- processor
- 68LC040 / 68040 @ 25 MHz
- can be upgraded to 50 MHz with the Doubler 4000
- general notes
- no memory option - slow motherboard RAM access
- memory can be added with the X-Calibur memory expansion board
- does not support the 040's burst RAM access (7/7/7/7 clock cycles - 14.3 MB/s memory bandwidth)
- on many A3640's the electrolyt capacitors are mounted in the wrong direction, reducing lifetime - even the PCB print is wrong
- A3640's made by Amiga Technologies have the capacitors in the right direction, but the PCB print is still wrong
- A3000 notes
- only v3.1 or v3.2 versions of the board work in A3000
- v3.1 works but has problems with certain Zorro cards which use DMA
- v3.2 works correctly
- with Kickstart 2.04 the card does not work with the combination of Ramsey-04 and static column fast RAM
- at least bank 0 should be page mode RAM
- the combination of Ramsey-07 and DMAC-04 works perfectly
- with Kickstart 3.1 there's no such problem
Rev 3.1, front side
Rev 3.2, front side
Rev 3.2, back side
Rev 3.1, back side
blank PCB, front side
blank PCB, back side