Company
Great Valley Products, USA
Date
1990
Amiga
A500
Interface
side expansion port
Autoconfig ID
2017 / 10,11
    SCSI 2 DMA controller
  • 3.58 MB/s transfer speed
  • FaaasT ROM SCSI driver (gvpscsi.device) - autobooting requires at least Kickstart 1.3
  • RDB compatible
  • place for a 3.5" hard disk inside the case
  • 50 pin internal header
  • DB25 external connector
  • supported by Linux
  • A-Max II driver (gvpscsi.amhd)
    memory
  • four 30 pin SIMM sockets accept 8 MB RAM
  • accepts 1 or 4 MB 120 ns SIMMs
  • supports 2, 4 or 8 MB configurations
  • fully autoconfiguring
    notes
  • connects to the side expansion port
  • has no passthrough connector
  • stylish design matches the A500
  • disable switch
  • hard disk activity LED
  • external power supply
  • built in fan
  • mini expansion slot for the optional PC emulator card
  • problems may arise with the combination of A500, 8372A Agnus and an internal memory expansion with CPU or Gary adaptor - a trace has to be cut to solve the problem
    jumper settings
    J5
    OFF
    OFF
    ON
    ON
    J6
    OFF
    ON
    OFF
    OFF
    J7
    ON
    OFF
    OFF
    OFF
    J8
    ON
    ON
    ON
    OFF
    J9
    OFF
    OFF
    OFF
    ON
    J12
    1-2
    1-2
    1-2
    2-3
    - memory
    - 0 MB
    - 2 MB, CN9-CN10
    - 4 MB, CN9-CN12
    - 8 MB, CN9-CN10
Great Valley Products Impact A500 HD8+ Series II - Case opened top side
Case opened, top side
Great Valley Products Impact A500 HD8+ Series II - Exterior top side
Exterior, top side
Great Valley Products Impact A500 HD8+ Series II - Exterior rear side
Exterior, rear side
Great Valley Products Impact A500 HD8+ Series II - Exterior right side
Exterior, right side
Great Valley Products Impact A500 HD8+ Series II - PCB Rev 3 front side
PCB Rev 3, front side
Great Valley Products Impact A500 HD8+ Series II - PCB Rev 6 front side
PCB Rev 6, front side
Great Valley Products Impact A500 HD8+ Series II - PCB Rev 3 back side
PCB Rev 3, back side