Path: utzoo!attcan!uunet!samsung!zaphod.mps.ohio-state.edu!sdd.hp.com!decwrl!ogicse!intelhf!agora!billsey
From: billsey@agora.uucp (Bill Seymour)
Newsgroups: comp.sys.amiga
Subject: Re: Supra WordSync (Was Re: Amax II and Harddisk support)
Message-ID: <1990Sep24.172153.16026@agora.uucp>
Date: 24 Sep 90 17:21:53 GMT
References: <9009191656.AA01610@ucbvax.Berkeley.EDU> <1990Sep20.213405.4773@agora.uucp> <2134@enea.se>
Organization: Open Communication Forum
Lines: 46

In article <2134@enea.se> tope@enea.se (Tommy Petersson) writes:
:
:Can somebody give me a piece of information regarding Supra WordSync
:Hard Disk Controller?
:
:It was tested in a Swedish magazine and was very slow on a stock B2000.
:They couldn't get it to work on a machine with an A2620 in it, so they
:just supposed that it didn't work. (That's how things are around here)
:In the Supra manual they say something about having to turn off DMA to
:memory on "some accelerator cards, ask that company".
:Is this necessary with the A2620?

	They must have been working with a *very* early WordSync and one
of the old DMA manuals. The WordSync is not a DMA coard, therefor you
don't need to woory about turning DMA off for accelerator cards. (BTW,
they were refering to cards with nonDMAable memory, outside the 24bit
address space.)

:How much will it affect system speed?
:How fast is the WordSync compared to other popular controllers on an
:A2620-equipped machine?

	Comparable with most cards. With a fairly fast drive (Quantum
maybe?) you should see speeds of about 600K/s. It probably would max
at 900K/s with a very fast drive. Not quite as fast as a Nexus, but good
enough for most people.

:Is it necessary to reformat the hard disk after installing the WordSync?
:(A normal A2090 has been used in the machine before, the hard disk is
:a 45 MB Rodime SCSI)

	You probably won't have to do a low level format, but you will
have to rewrite the rigid disk block partitioning information and the
devinit code. Just back everything up and partition with the SupraFormat
program.

:Any Informatin will be appreciated
:
:Tommy Petersson


-- 
     -Bill Seymour             ...tektronix!reed!percival!agora!billsey
=============================================================================
Bejed, Inc.       NES, Inc.        Northwest Amiga Group    At Home Sometimes
(503) 281-8153    (503) 246-9311   (503) 656-7393 BBS       (503) 640-0842