kampe@ncrsth.NCR.SE (G|ran K{mpe) (02/11/90)
A few weeks ago I bought a SUPRA-RAM 2MB extension board for my A2000.
I ran the memory-test for a few hours without any indications of
errors, and plugged it in.
My Amiga has a A2090A hard-disk controller and a NEC D3146H Hard disk. It
is a Revision 6-machine equipped with the new Fatter Agnus chip.
Perhaps I should also mention that it's a PAL-machine.
Before I installed the Supra RAM, everything worked just fine. But
only a few minutes after I installed it, I started getting software
errors, and a lot of GURUs. Then, I was told that one of my partitions
had a Read/Write Error.
After a few more Read/Write errors, I decided to reformat my entire
HD. No problems there, but after booting up my machine, it took only
a few seconds until I got another GURU. This seemed so strange to
me that I decided to boot from floppy, and only run programs from my
floppy. Everything worked great. But as soon as I tried to access
my Hard Disk, I got a GURU. Maybe not on the first try, but soon enough.
Even more mystified, I removed the Supra RAM, tested it again (no errors),
and booted up without it. Everything worked perfectly. I installed the RAM
again -> GURU after a few reads on the hard disk.
Now I'm really confused. It seems as if there is nothing wrong with the
RAM-board. It works as long as I'm not using the hard disk. The controller/
disk workes fine as long as I don't use the RAM-board. My only possible
lead was that there is supposed to be some kind of a bug with the Rev 6.0
and 6.1 motherboards that somehow screwes up second-party hardware.
Well, I took my machine to the local Commodore-dealer, and he did
the required modifications. Things looked pretty bright in the store when
we tested things, but after 10 minutes at home the GURUs came back.
Does anybody know anything about this, or have any suggestions on how
to solve this problem? I don't even know where to start looking.
Please E-mail any answers to me, since I only sporadically get the Amiga
news on the net.
Thanks a lot in advance!
--
G|ran K{mpe Phone: +46 8 750 2500
NCR Svenska AB Fax: +46 8 752 0008
Box 1206 Email: kampe@Stockholm.NCR.SE
S-164 28 KISTA SWEDEN [sunic, cs-col, ncrlnk] !ncrsth!kampejim@syteke.be (Jim Sanchez) (02/21/90)
I think you have identified the problem as the REV 6.0 motherboard. I
too have such a beast and was forced to buy TWO disk controllers since
the Hardframe would NOT work with the 6.0 motherboard. My Supra works
fine. I have been told that some memory expansion card will not work
as well. As for getting it updated at the dealer, CBM and others tell
me that it is NOT RECCOMENDED and that a motherboard replacement is
required. However, good luck in getting it done in Europe. I have
contacted the Belgian Commodore office(no real reply) and Commodore in
Braunsweig Germany. I STILL do not have an answer as to how I can get
my motherboard replaced. As far as I am concerned, it is a FIASCO for
those of us who have the problem. CBM has a LONG way to go before
their support over here is a level that can be called "professional"
Sorry to be the bearer of bad news.
--
Jim Sanchez {sun,hplabs}!sytek!syteke!jim OR
Hughes LAN Systems, Brussels uunet!prlb2!sunbim!syteke!jim