Path: utzoo!mnetor!uunet!husc6!rutgers!bellcore!faline!ulysses!hector!eric
From: eric@hector.UUCP (Eric Lavitsky)
Newsgroups: comp.sys.amiga
Subject: Re: Amiga 1000, and Micron Technologies single slot chassis
Message-ID: <3315@ulysses.homer.nj.att.com>
Date: 27 Dec 87 05:31:43 GMT
References: <8712250110.AA26008@jade.berkeley.edu>
Sender: daemon@ulysses.homer.nj.att.com
Reply-To: eric@hector (Eric Lavitsky)
Organization: AT&T Bell Labs, Murray Hill
Lines: 55
Summary: Micron chassis will only work with ASDG designed products

In article <8712250110.AA26008@jade.berkeley.edu> CRONEJP@UREGINA1.BITNET.UUCP 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.

Don't understand why you did this - the Micron memory board is way superior
to the Commodore design (no offense guys :-), because of the following:

	1) 4 layer PC board (CBM is two layer) - means less noise
		on the bus. *I'll* guarantee you that 4 Micron boards
		will work in a B2000 (won't speak for ther Germans!)
	2) Socketed RAM array (CBM is soldered) - means bad chips
		are easily replaced.
	3) Full diagnostics (CBM comes w/none) - means that you can
		determine which chips if any are bad.
	4) Long warranty (two years I think)

>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.

	5) The Micron board (ASDG's design) is a superset of the
		Zorro board specification. It provides full Zorro
		bus buffering and arbitration on the board. Because
		of this, the Micron/ASDG memory board will work in
		just about any Zorro or Zorro subset box around.
		The ASDG MiniRack-C was a Zorro subset box; the Micron
		single slot adapater is a Zorro subset. The CBM board
		expects to be plugged into a *full* Zorro backplane.

>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.

Sorry to hear it, but there's not much you can do. If you can return the
CBM board and get a Micron board (I hear Able has it for under $350.00),
I'd recommend doing that.

>Jonathan Crone
>CRONEJP@UREGINA1.BITNET
>

Eric Lavitsky

#disclaimer - I work for ASDG and so my ideas and opinions should be
taken with a very small grain of salt - 'course my opinions are my
own, and I do try to be as unbiased as possible.

ARPA:	eric@topaz.rutgers.edu			 "Lithium is no longer available
UUCP:	...{wherever!}ulysses!eric		  on credit..."
	...{wherever!}rutgers!topaz!eric		- from Buckaroo Banzai
SNAIL:	34 Maplehurst Ln, Piscataway, NJ 08854