Company
Great Valley Products, USA
Date
1989
Amiga
A2000
Interface
CPU slot
Autoconfig ID
2017 / 8,9,13
    processor
  • 68030 @ 16 / 25 / 28 / 33 / 50 MHz, PGA
  • optional 68882 @ 16 - 50 MHz, PGA - can be clocked at different speed than the CPU
    optional memory daughterboards
  • 68030-RAM8:
    • eight 30 pin SIMM sockets accept 4 or 8 MB RAM
    • supports only special 1 MB Nibble Mode SIMMs, they are more expensive than GVP SIMMs
    • accepts SIMMs in groups of four
  • 68030-RAM32: (from 1991)
    • eight 64 pin SIMM sockets accept up to 8 or 20 MB RAM
    • supports only special 1 or 4 MB, 60 ns GVP SIMMs
    • 60 ns SIMMs are required for 50 MHz, 70 ns for 33 MHz, 80 ns for 25 MHz
    • 16 - 33 MHz boards support 1 MB SIMMs only, possible configurations are 2, 4 and 8 MB
    • 50 MHz boards support 4 MB SIMMs, possible configurations are 4, 8, 12, 16 and 20 MB
    • using a 4 MB SIMM requires four 1 MB SIMMs to be installed in sockets 3 to 6, so the 4 MB SIMMs can only be installed into sockets 7 to 10
    optional IDE controller
  • two autoboot ROM sockets
  • to activate the IDE controller only the boot EPROM(s) (gvpat.device) has to be installed on the main board - the first version of the driver software required two EPROMs, later ones required only one
  • does not support drives that has more than 1024 cylinders
  • controller uses byte-swapped storaging, so the HDD will be unreadable on other controllers without that feature
  • 40 pin internal IDE header
  • A-Max II driver (gvpat.amhd) - requires gvpat.device v2.4 and A-Max v2.06
    notes
  • autobooting requires at least Kickstart 1.3 - the autoboot ROM should not be installed with Kickstart 1.2
  • two ROM sockets for UNIX boot ROMs that require an A2090A SCSI controller - these ROMs are compatible with those on the A2630
  • 68000 fallback mode selectable by jumper
  • the memory and IDE controller is also deactivated in fallback mode
    jumper settings - A3001
    JumperDefaultDescription
    J4OPENInstall to clock FPU from oscillator U2
    J5SHORTEDRemove to disconnect FPU from oscillator U1
    J6OPENInstall to disable the 68030ís caches
    J7OPENInstall to disable the 68030ís MMU
    J8OPENInstall to enable Unix boot register
    J9SHORTEDRemove to enable 68030 boot EPROMs
    J10SHORTEDRemove for use in German 4-layer A2000ís
    J11OPENInstall to boot in 68000 mode
    J12OPENReserved
    J13OPENReserved
    J14SHORTEDReserved
    J15OPENReserved (AT interface)
    J16SHORTEDReserved (AT interface)
    jumper settings - RAM8 board
    JumperDefaultDescription
    J1OPENReserved
    J2OPENReserved
    J3SHORTEDReserved
    J4SHORTEDReserved
    J5SHORTEDRemove to enable full 8MB of 32-bit RAM
    J6SHORTEDReserved
    J7OPENReserved
Great Valley Products A3001 (Impact A2000-030) - Series I front side
Series I, front side
Great Valley Products A3001 (Impact A2000-030) - Series I front side
Series I, front side
Great Valley Products A3001 (Impact A2000-030) - Series I with RAM8 board back side
Series I with RAM8 board, back side
Great Valley Products A3001 (Impact A2000-030) - Series I with RAM8 board back side
Series I with RAM8 board, back side

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