Amiga Hardware Database Expansion cards



Mercury Manual Photo Software
Company
Progressive Peripherals & Software, USA
 Date
1991
 Amiga
A3000
 Interface
CPU slot
 Autoconfig ID
2026 / 0
    processor
  • 68040 @ 28 / 35 MHz
    • both version is an overclocked 25 / 33 MHz one
    memory
  • eight 30 pin SIMM sockets accept 32 MB
  • supports 1 or 4 MB SIMMs 40-80ns (33 MHz model) or 60-100 ns (28 MHz model)
  • accepts SIMMs in groups of four giving 4, 8, 16, 20, 32 MB RAM
  • Fast Page, Static Column and Nibble mode SIMMs are supported
  • burst RAM access
    • off-board memory burst access if most recent Buster, DMAC and Ramsey chips are installed
    notes
  • if the motherboard is fitted with static column fast RAM the first chip must be replaced with the supplied page mode ZIP DRAM chip - this solves a bug in Ramsey and allows the board to do burst RAM access
  • 68030 fallback mode works only with 25 MHz motherboards
  • in 68030 fallback mode the onboard RAM is still useable but it's not contiguous with the motherboard RAM
  • when used in an A3000T, a 74F08 chip must be inserted at location U103 on the motherboard
  • FastROM jumper reserves 1 megabyte of memory for FastROM usage
  • two floppy power connectors allow distribution of power to both floppy drives

    Photo
    Progressive Peripherals & Software Mercury -  front side
    front side

    Progressive Peripherals & Software Mercury -  front side
    front side

    Progressive Peripherals & Software Mercury -  back side
    back side




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