Article View: comp.sys.mac
Article #7768HELP! My Mac II is freaking out!
From: Thomas Summerall
Date: Tue, 14 Nov 1989 16:13
Date: Tue, 14 Nov 1989 16:13
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My System: Mac II, Apple HD40 internal, 5 megs
Apple 8 bit video card, Apple RGB Monitor
68851RC16A PMMU
Orchid Macsprint Cache Card
-Four megs, the PMMU, and the Macsprint, and the motherboard
are recently installed, the problems began since their instal-
lation, but not immediately after.
The Problem: At random intervals, sometimes within minutes of startup, sometimes
after a couple of hours (usually the former) the screen flashes with static.
The flashes tend to worsen over time until they are several seconds long.
They resemble snow on a tv screen. Only after ten or fifteen of these
errors does it cause a system crash. Sometimes these crashes are so hard
that the screen remains dark after resetting and I have to manually power
down. I have no clue as to where these strobes are coming from. They
don't seem to be scrambling the RAM because only the most severe actually
cause errors. I don't have an anti static pad so I haven't tried to
unplug the MacSprint. I have turned it off with software, and the problems
still occur. Same with all inits off. It also happens in any program.
HELP! Thanks in advance,
Thomas Summerall
thomas@eleazar.dartmouth.edu
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arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!cs.utexas.edu!tut.cis.ohio-state.edu!purdue!bu-cs!dartvax!eleazar.dartmouth.edu!thomasShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!cs.utexas.edu!tut.cis.ohio-state.edu!purdue!bu-cs!dartvax!eleazar.dartmouth.edu!thomas From: thomas@eleazar.dartmouth.edu (Thomas Summerall) Newsgroups: comp.sys.mac Subject: HELP! My Mac II is freaking out! Message-ID: <16908@dartvax.Dartmouth.EDU> Date: 14 Nov 89 16:13:08 GMT Sender: news@dartvax.Dartmouth.EDU Reply-To: thomas@eleazar.dartmouth.edu (Thomas Summerall) Organization: Dartmouth College, Hanover, NH Lines: 24