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- Newsgroups: comp.sys.amiga.hardware
- Path: sparky!uunet!gatech!darwin.sura.net!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!cbnewsm!benw
- From: benw@cbnewsm.cb.att.com (bennett.weber)
- Subject: Re: Help! I think I have a bad chip!
- Organization: AT&T
- Date: Tue, 1 Sep 1992 20:47:19 GMT
- Message-ID: <1992Sep1.204719.9992@cbnewsm.cb.att.com>
- Keywords: A2000, chips
- References: <1992Aug31.034608.25524@engr.uark.edu>
- Lines: 35
-
- In article <1992Aug31.034608.25524@engr.uark.edu> mdg1@engr.uark.edu (Michael D. Glover) writes:
- >I have a 2000HD with a 2091 HD controller and a 2088 bridgeboard.... The story
- >is as follows:
- > I have been having a LOT of trouble with my 2000 crashing for NO reason
- > whatsoever, like in the middle of JR-Comm and other applications. The
- > crash is usually preceded with SCRAMBLED LETTERS (i.e. text with extra and
- > /or missing pixels). At times, menus are sometimes jumbled up as well, and
- > then sometimes the thing will crash IMMEDIATELY AFTER BOOTUP, even before I
- > can see the WB screen. I have had crashes in times past, but never this
- > many and NEVER with messed up video.
- >
- >Does anyone have any idea which chip(s) might be bad to cause the above
- >symptoms? Has anyone ever had similar troubles? PLEASE help if you can, as I
- >am going to be needing my computer very soon for an important project.
- >
- >Thanks................................ Mike Glover
- > mdg1@engr.uark.edu
-
- I had the exact same problem on my A500. I had been hacking around the
- insides (wiring up a KB talker designed for the 2000), and, out of force of
- habit, I pushed down on most of the chips to make sure they were
- seated (500s have a history of loose Agnus chips). Sure enough,
- of the next few days, the same problem you're having started to appear.
-
- Turns out I pushed too hard (believe it or not) on the Agnus chip...
- apparently enough to cause intermittent contact. I pulled UP
- on the chip (and it actually shifted in the socket, but not OUT of
- the socket) and the problem hasn't reocurred in the 6 months since.
- Hope yours turns out to be this simple!
-
- Ben Weber
-
- AT&T Network Systems
-
-
-