Subject: Re: System error 0911 on IIgs From: Paul Schultz Date: Mon, Nov 30, 1998 9Ç42(H Message-id: On Mon, 30 Nov 1998, Glenn Fisher wrote: > Sometime when I power on my IIgs, I get a > "System Startup error 0911" > Can anyone tell me what this means or point me to a URL where I > might find out what it means. I do not have a IIgs manual. > Thanks for any replys. Glenn, The 911 error is well known to IIgs users. It is caused by your ADB controller chip which in certain machines is flakey about what temp it will run at. Some users state that you need to have the ADB chip warmed up before your system will run stably. Others will tell you that you need to run your system 'cooler' so the ADB chip won't overheat. From my years of reading this newsgroup most people have found that keeping your system cool will help alleviate the 911 errors (or at least reduce the occurence). There is the chance that the ADB chip is on its last legs and you won't be able to do any of the suggestions below to eliminate the 911 error. However, it is my experience that one of the methods outlined below will usually solve your problems. To keep your system from overheating you can: 1 -- run it with the top off; 2 -- buy a used System Saver IIgs which is the bestcooling fan option; 3 -- buy an internal fan for the IIgs -- less optimal than the SS IIgs. 4 -- You can also try to reduce the number of expansion cards in your case to the few essential cards. 5 -- If you are running a heavily loaded system you may want to consider a new heavy duty power supply. There are HD supplies which physically replace the stock supply or you could opt for a 'Buggie' Power supply (a PC supply with appropriate connectors to use with a IIgs -- the supply physically sits outside the IIgs case thus eliminating the chief source of heat within the CPU case). Steve Buggie advertises these supplies periodically on csa2.marketplace. The csa2 FAQ should describe all this in more detail and provide you with vendor lists for anything you may want to purchase. FWIW, I just alleviated a persistent 911 error with my IIgs by purchasing a used System Saver IIgs. Good luck, Paul. pschultz@med.wayne.edu Paul Schultz