Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!rutgers!cbmvax!amix!vanth!jms From: jms@vanth.UUCP (Jim Shaffer) Newsgroups: comp.sys.amiga.hardware Subject: system locking up when accessing floppies Message-ID: Date: 18 Dec 90 10:19:47 GMT Lines: 32 I've been having a problem with my A500 for a while now, but it's just gotten frequent enough to make me want to do something about it. The system will lock up sometimes when I'm accessing my floppy drives. The drives will remain spinning and all I can do is reboot the machine. Specifically, it almost always happens when I'm starting an operation on DF0: before a previous operation on DF1: has finished. Which is not to say it happens every time I do that, though. It usually happens when the system has been on for a long period of time like an entire morning or afternoon. Lately it's started happening with as little as an hour of on-time. Thinking it was an overheating problem, I bought some rubber 'feet' from Radio Shack and stuck them on the bottom of the unit to raise it off the desk further than it was. With the original small feet, the middle of the unit sagged down to touch the surface of the desk. This didn't help, though. I've also re-seated the 8520 chips several times, and swapped them (with each other, not with another set) once. Each time the problem goes away for an increasingly short amount of time. As I said, it's just gotten to the point where the system will lock up *every session*, so I want to do something about it now. If this is really an 8520 problem, which one (or both) do I need to replace, and how much do they cost? If it isn't an 8520 problem, what's the next thing to check? -- paper : James Shaffer Jr., 37 Brook Street, Montgomery, PA 17752 uucp : uunet!cbmvax!amix!vanth!jms (or) rutgers!cbmvax!amix!vanth!jms domain: jms%vanth@amix.commodore.com CompuServe: 72750,2335 quote : ATTENTION ALL PLANETS OF THE SOLAR FEDERATION: WE HAVE ASSUMED CONTROL