Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!unido!wrkof!spock From: spock@wrkof.incom.de (Martin Georg) Newsgroups: comp.sys.apple2 Subject: Re: Unclaimed Sound Interrupt(08FF) Message-ID: <1990Sep14.070132.14678@wrkof.incom.de> Date: 14 Sep 90 07:01:32 GMT References: <92749@<1990Sep9> <139800020@uxa.cso.uiuc.edu> Organization: Ing. Buero Winfried Koenig, Offenbach Lines: 29 In article <139800020@uxa.cso.uiuc.edu> sec20750@uxa.cso.uiuc.edu writes: > >/* Written 10:59 am Sep 11, 1990 by USERID@bunny.gte.com in uxa.cso.uiuc.edu:comp.sys.apple2 */ >As I mentioned earlier (~3 weeks ago) I have had the same problem. Mine >is DEFINITELY temperature related. The increase in temperature is caused >by any combination of: > >1) insuffecient power supply >2) improper ventelation (poor fan, blocked air paths) >3) too many 'high power drain' cards - including RAM expansion slot cards. >4) outside air temperature > >I almost never had errors in the winter (I keep my office COLD). In the >spring, summer and fall the frequency increased. On really hot days, I >couldn't even start up the computer and run it for 5 minutes without $08FF >errors. > (Some stuff deleted here...) I found out that using Stylewares Phone Filer caused my System to crash when I tried to start a ProDOS 8 program after using the Phone Filer. This even occurs when I installed the DA later with a Install-NDA. Try to remove that DA if you use it. >Michael Hackney >PiWare Martin Georg West germany, Frankfurt