Path: utzoo!utgpu!watserv1!watmath!att!att!linac!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!usc!cs.utexas.edu!uunet!cbmvax!fred
From: fred@cbmvax.commodore.com (Fred Bowen)
Newsgroups: comp.sys.cbm
Subject: Re: 1581 ROM Upgrade?
Message-ID: <15463@cbmvax.commodore.com>
Date: 29 Oct 90 23:51:00 GMT
References: <1990Oct28.171030.16050@athena.mit.edu>
Reply-To: fred@cbmvax.commodore.com (Fred Bowen)
Organization: Commodore, West Chester, PA
Lines: 21

In article <1990Oct28.171030.16050@athena.mit.edu> randy@mit.edu writes:
>I'm hoping Fred Bowen or someone else at Commodore might read this and
>have the scoop on this.  Lately, there's been some discussion on our
>local BBS about a ROM upgrade for the 1581.  I knew about the WD
>controller upgrade, but not about a ROM upgrade.  One of the folks who
>mentioned this, a hardware developer, certainly knows the difference
>between a controller and a ROM, but he also told me he had no idea
>what the upgrade fixed, since he didn't have any problems before
>replacing it, and didn't notice anything different after replacing it.

There is no upgrade ROM for the 1581.  What has caused confusion among
some users is the existance of two part numbers for basically the same
thing: one an EPROM (p/n 318045-01) and the other a ROM (p/n 312558-01).
Both contain the exact same code.
--
-- 
Fred Bowen			uucp:	{uunet|rutgers|pyramid}!cbmvax!fred
				domain:	fred@cbmvax.commodore.com
				tele:	215 431-9100

Commodore Electronics, Ltd.,  1200 Wilson Drive,  West Chester,  PA,  19380