Great Valley Products Impact A500 HD8+ Series II

Manufacturer Great Valley Products, USA	Date 1990	Amiga A500	Interface side expansion port	Autoconfig ID 2017 / 10,11

Manufacturer

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
the 4 MB configuration requires four 1 MB modules, a 4 MB module is not sufficient
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