#2091 ROMS upgrade
5 messages in this thread
Does anyone know if the hard drive controller ROMS (2091) on the A3000
motherboard can be replaced with newer versions? I have a friend with a an
A3000 and an A2000. He has Syquest removable media drives for each machine, and
his A3000 won't format sysquests and bombs out whenever he tries to copy large
files. Put the same cartridge in his 2000 and it works fine and formats no
problem. I think his A2000 has version 6.6 2091 ROMS. HE has heard that version
7.0 ROMS are now available. Anyone know if you can simply replace his older
ROMS in the 3000 with the newer ROMS?
Any help appreciated.
Regards,
Pat Fallon
Pat,
I used a Syquest on a 3000 (one of the earliest models) for 3 years. While
your friend may have problems it is not due to the rom on the 3000's onboard
scsi host adapter. It may be that he does not have the Syquest properly
terminated.
Hmmm… My Syquest 44mb works great with my A3000 which is an early model.
I am able to format, read and write with NO problems in both Amigados and
MSDos. Check for proper termination or some other setup problem. Some
Syquests used to have a problem with diskchanges and needed a new rom in
the Syquest but this would not cause the problems you cite.
Goin' AP
…..Mark Sterling
Pat:
The important thing here is the ROM revisions in the actual SyQuest
drives. Some of the earlier ones had a problem with reselection (sometimes
called disconnect/reconnect). On these drives if reselection wasn't
specifically turned off they would have trouble formatting cartridges, and
disk access would be even slower than floppies! 🙁 If reselection is
turned off these troubles go away. I know that there's a way to turn off
reselection using Microbotics RDPrep software (which they've released as
freeware, and is in the libs in the AmigaVendor forum), and I know that
GVP's fastprep software also supports turning off reselection, but I don't
know how you would do it with HDToolBox that comes with the A3000. I use
RDPrep, and have for a long time (before I got my 3000 I had a hardframe
in my A2000), and I think it's the finest software available for
partitioning drives, and it writes out a full RDB as well. (many programs
don't use all the available options in the RDB, so they don't even write
those out, GVP & ICD are 2 that I know of that do that). If your friend
still has trouble with his drive after setting reselection to off, then he
might have a problem with the drive.
If you have any other questions regarding this, feel free to ask me, as I
originally had a drive that didn't support reselection, and I'm familiar
with some of the things needed to do to get around the problem. I now have
a 44 meg SyQuest that DOES support reselection, and let me tell you, it
makes a world of difference.
In case you aren't familiar with reselection, as an example, I use the
GnuTar program to backup my HDs to tape, and on a drive with reselection
ON the machine can read from the drive as it writes to the tape. On a
drive with reselection OFF the system would have to first read the HD,
then write to the tape, then once the write is done, go back and read from
the HD again, etc, etc, so if you can use reselection, you can speed up
some operations on the machine.
// -Mike Schiller
\X/ AMIGA! On AutoPilot in sunny Fort Lauderdale
Thanks Mike. Good stuff. I'l see about reselection. Pat