Spirit Technology Inboard 500 (IN500) - Amiga Hardware Database

Manufacturer Spirit Technology, USA	Date 1987	Amiga A500	Interface 68000 socket	Autoconfig ID 2034 / 2

Manufacturer

Spirit Technology, USA

Date

1987

Amiga

A500

Interface

68000 socket

Autoconfig ID

2034 / 2

48 DIP sockets accept up to 1.5 MB RAM
supports 256k×1 DIPs only
accepts DIPs in groups of 16 giving 0.5, 1 or 1.5 MB configurations
does not really autoconfig its memory - it recognizes the installed amount, but places the memory outside of the autoconfig space
the Inboard may use up about 200 kB of RAM for some custom PAL chips:
- an 512 kB Inboard and an A501 (or compatible) nets 1.5 MB
- an 1 MB Inboard without the A501 nets 1.5 MB
- an 1 MB Inboard and an A501 results about 1.8 MB total
- an 1.5 MB Inboard gives also 1.8 MB only
by turning off the automatic memory recognition and using the AddMem software, the 200 kB loss can be eliminated
connects into the 68000 socket
the 68000 is replaced onto the board
a clip has to be attached to the Gary chip