home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.3b1
- Path: sparky!uunet!think.com!spool.mu.edu!introl.introl.com!booth!roger
- From: roger@booth.uucp (Roger Abrahams)
- Subject: Re: rs232 computer connection
- Message-ID: <C0o7Kv.1w1@booth.uucp>
- Organization: Private System
- References: <C0JrBA.I3z@news.cso.uiuc.edu> <1993Jan9.161859.17117@colnet.cmhnet.org> <C0n9v0.yH@booth.uucp>
- Date: Mon, 11 Jan 1993 03:41:19 GMT
- Lines: 31
-
- In article <1993Jan9.161859.17117@colnet.cmhnet.org> res@colnet.cmhnet.org (Rob Stampfli) writes:
-
- [stuff deleted]
-
- >
- >This is from memory, so it may not be 100 percent accurate. There was a
- >design bug found in an early version of the 8530 chip that was used in some
- >later versions of the serial and combo cards. The card was redesigned to
- >cut costs, and the redesign uncovered the bug. I'm not sure of the revision
- >number of the affected cards, but I know the "E" series was clean, so the
- >problem was introduced after that, I think around "G" or so. If you have
- >a board that has one silver box instead of two crystals on it, it has the
- >potential for being affected.
-
- [more deletions]
-
- >AT&T used to send you a free good 8530 if you complained that you
- >had these symptoms. I doubt the offer is still good.
-
- FYI: The original "bad" chip was made by AMD, and the replacement
- was a Zilog. The date on my copy of the instruction is October
- of 1987.
-
- Something when wrong the first time I posted this, so I am trying
- again...
-
- >--
- >Rob Stampfli rob@colnet.cmhnet.org The neat thing about standards:
- >614-864-9377 HAM RADIO: kd8wk@n8jyv.oh There are so many to choose from.
-
- - roger@booth.introl.com
-