Path: utzoo!mnetor!uunet!husc6!uwvax!rutgers!ames!ucbcad!ucbvax!hplabs!well!perry
From: perry@well.UUCP (Perry S. Kivolowitz)
Newsgroups: comp.sys.amiga
Subject: Re: Amiga 1000, and Micron Technologies single slot chassis
Message-ID: <4861@well.UUCP>
Date: 27 Dec 87 07:19:46 GMT
References: <8712250110.AA26008@jade.berkeley.edu>
Reply-To: perry@well.UUCP (Perry S. Kivolowitz)
Organization: Whole Earth 'Lectronic Link, Sausalito, CA
Lines: 56

In article <8712250110.AA26008@jade.berkeley.edu> CRONEJP@UREGINA1.BITNET (Jonathan Crone) writes:
>I just got my micron technologies single slot chassis in the mail today
>and attempted to hook it up and install a Commodore 2052 2 meg ram board
>in the unit.
>if the chassis is sitting empty the machine boots with no problems.
>as soon as i install the memory board into the chassis, the computer
>runs through the kickstart initialize sequence, and then does the
>color cycling routine prior to requesting the workbench diskette.
>and chokes after cycling past the dark grey, and locks up on light gray
>and refuses to do anything.
>
>This was supposed to be my Christmas present to myself because i can count
>on no one else getting me anything interesting, and now i'm sitting here
>staring  at a working empty chassis VS a bombed full chassis.
>
>I was planning on digging out the multimeter  and checking all the voltage
>levels next.... then i would go after the pals....
>
>can ANYONE tell me what the hell might be wrong?????
>
>ESPECIALLY COMMODORE.......
>
>
>
>Jonathan Crone

Congratulations. To save  a  few  dollars (maybe)   you've wasted  quite
a few. The CBM memory board will only work  in a full Zorro environment.
The 86 pin connecter off the Amiga is NOT a full Zorro environment. ASDG
(who designed the Micron two meg memory  board) designs their boards  to
work in full Zorro OR an 86 pin environment. 

You bought the wrong board.

Besides the CBM memory board consumes about three  amps for two megs,  I
am told. The A1000 will only deliver 1 amp off the side. The ASDG/Micron
boards consume 1 amp. The ASDG EIGHT megabyte board doesn't even consume 
three amps. Which leads to the following comparison:

4 CBM 2052's at 3 amps yields 8 megabytes in four slots at 12 amps.
4 ASDG/Micron 2 meg boards at 1 amp yields 8 megabytes in four slots at 4
  amps.
1 ASDG 8MI at 2 amps yields 8 megabytes in 1 slot at 2 amps.

The Micron boards costs less, comes with more support, has a warranty 8
times longer than CBM's, consumes 1/3 as much power (and produces 1/3 as
much heat), has socketted ram array for easy servicing, and is generally
a better board. 

The ASDG 8MI is a better choice for those going past 2 meg though. Those
slots disappear soon enough even without 4 two megabyte boards. The 8MI can
be populated at 2, 4, 6, and 8 meg.

Hope this helps

Perry --- ASDG Inc.