Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!uunet!mcvax!unido!pfm!nadia!space
From: space@nadia.UUCP (Lars Soltau)
Newsgroups: comp.sys.amiga.tech
Subject: Re: New 6.0 2500 Hates 68000 Mode!
Summary: Troubles with 2MB mem expansion board
Message-ID: <440@nadia.UUCP>
Date: 6 May 89 23:12:51 GMT
References: <576@dialog.UUCP> <6782@cbmvax.UUCP>
Reply-To: space@nadia.UUCP (Lars Soltau)
Organization: Stuttgart Net System, FRG
Lines: 32

In article <6782@cbmvax.UUCP> daveh@cbmvax.UUCP (Dave Haynie) writes:
>Though I'm open to any specific examples of
>trouble -- we can certainly look for any problems on this end if we have
>an idea of what to look for.
>-- 
>Dave Haynie  "The 32 Bit Guy"     Commodore-Amiga  "The Crew That Never Rests"
>   {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: D-DAVE H     BIX: hazy
>              Amiga -- It's not just a job, it's an obsession

Sounds encouraging. OK, here we go!
I have a Commodore 2052 2MB Expansion Board, Rev. 3, which worked fine on
my old B2000. When I got an B2000 with the new Rev.6 motherboard, things
started to get very unstable. Whenever I started something that used a lot
of RAM (zoo, multiple NetHacks/DMEs), the machine crashed with various Gurus:
sometimes #3.X, sometimes "wrong library checksum" (forgot the number). At
first I thought my RAM board was flaky, so I borrowed a B2000, Rev. 4.4, which
hasn't had a single Guru since I installed the 2052. I am using FastMemFirst,
so the $200000 RAM gets used all right.
My last hope was that my Rev.6 B2000 was the troublemaker. But today I tried
my RAM card with Christian's Rev.6 B2000 and in the progress we damaged his
file system so that he had to reformat his hard drive. At first we could
start 4 copies of nethack, the fifth caused a Guru. Then, after a reboot,
the 2nd nethack crashed.
Dave, you wrote something about switching from 150ns to 120ns RAMs. My 2052
has 150ns DRAMs, might that be the cause of my problems?

I hope the information I gave you is sufficient for you to find a solution
to my problem. I am anxiously waiting for your reply, since I will soon have
to decide which B2000 to keep. While I'd very much like the 1MB Chip RAM,
it would break my heart if I'd have to part with my 2MB card.
-- 
Lars Soltau	UUCP: ...uunet!unido!pfm!nadia!space	BIX: -- no bucks --