[comp.sys.amiga.hardware] A2000 and Memory

paul@wa1omm.UUCP (Paul MacDonald) (04/26/91)

What happens to the 5 MBytes of 16-bit memory in my A2000 when I add a
68030 accelerator with 8 MBytes of 32-bit memory? Does that give me 13
MBytes?
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blgardne@javelin.sim.es.com (Blaine Gardner) (04/27/91)

paul@wa1omm.UUCP (Paul MacDonald) writes:

>What happens to the 5 MBytes of 16-bit memory in my A2000 when I add a
>68030 accelerator with 8 MBytes of 32-bit memory? Does that give me 13
>MBytes?

No, you get 1M on the motherboard, 8M on the accelerator card, and then
AutoConfig stops configuring any cards past the 8 meg limit.

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Blaine Gardner @ Evans & Sutherland  580 Arapeen Drive, SLC, Utah 84108
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vollath@Informatik.TU-Muenchen.DE (Ulrich Vollath) (05/02/91)

In article <paul.5748@wa1omm.UUCP>, paul@wa1omm.UUCP (Paul MacDonald) writes:
|> What happens to the 5 MBytes of 16-bit memory in my A2000 when I add a
|> 68030 accelerator with 8 MBytes of 32-bit memory? Does that give me 13
|> MBytes?
How can I expand the 32 bit memory on my 68030 to 8 MBytes ?
The manual mentions only 4 MByte.
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Ulrich Vollath                 email: vollath@lan.informatik.tu-muenchen.de
Munich Institute of Technology voice: 004989/2105-8102 (result: -8099.62992874)

daveh@cbmvax.commodore.com (Dave Haynie) (05/03/91)

In article <1991May2.101800.1608@Informatik.TU-Muenchen.DE> vollath@Informatik.TU-Muenchen.DE (Ulrich Vollath) writes:
>How can I expand the 32 bit memory on my 68030 to 8 MBytes ?
>The manual mentions only 4 MByte.

The A2630 itself only supports 4MB of memory onboard.  It can, in theory, 
support a daughterboard with up to 64MB on it, though no such daughterboard
yet exists.  Most of the other 68030 boards didn't have any memory on the
main board, so they all got daughterboards, often with more than 4MB on them.
At the time the A2630 was designed, memory was expensive enough to limit the
on-board amount to 4MB.  Also, that's all that would fit without some drastic
package size reductions.

-- 
Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests"
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