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From: perry@well.UUCP (Perry S. Kivolowitz)
Newsgroups: comp.sys.amiga
Subject: Re: 68020/68881 on A2000
Message-ID: <4603@well.UUCP>
Date: Wed, 2-Dec-87 04:23:24 EST
Article-I.D.: well.4603
Posted: Wed Dec  2 04:23:24 1987
Date-Received: Sat, 5-Dec-87 14:43:33 EST
References: <1718@netsys.UUCP> <2856@cbmvax.UUCP>
Reply-To: perry@well.UUCP (Perry S. Kivolowitz)
Organization: Whole Earth 'Lectronic Link, Sausalito, CA
Lines: 37
Keywords: 68020 amiga B2000 68881 32 bit speed

In article <2856@cbmvax.UUCP> grr@cbmvax.UUCP (George Robbins) writes:
>In article <1718@netsys.UUCP> bathkey@netsys.UUCP (Scott Bethke) writes:
>> 
>> 	OK folks, I just got a 68020, with a 68881 (20 Mhz) for my B2000
>> (stuff deleted)
>> it took sculpt 11.5 hours with the 68020 and 20 Mhz 68881.
>
>Did you invest in any of their "fast 32 bit memory"?  A 68020 executing out
>of 16-bit memory, or worse 16-bit chip memory isn't going to blow away the
>world or anything...

I might add that the static memory boards from CSA do infact greatly
inhance the speed of  their co-processor boards. The draw back is of
course their price. These  are  their latest prices  as I understand
them:

1/2 meg board $999
2   meg board $3999

May I suggest that a good way to go is to get one CSA 32  bit memory
board and then supplement your ram with large amounts of 16 bit ram.
For example, get a half meg from CSA for $999 and an 8MI 8  megabyte
board from ASDG for $2599. The ASDG Recoverable Ram Disk will use 16
bit memory first by the way giving you the best of both worlds.

Another idea is to get the CBM 68020 board when available. That board
can be populated with 2 megabytes of 32 ram on  card appearing in the
standard autoconfig space (correct me if I am wrong George). With   2
meg gone from the total of 8 allowable by the autoconfig standard  an
8MI  with 6  megabytes installed will autoconfig the remaining 6 meg.
BTW: autoconfiguring a six meg  memory  board is an  ASDG feature not
part of the autoconfig standard.

Thanks,

Perry Kivolowitz
ASDG Incorporated