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Re: LC/Performa 475 Errors.

Ray Knight wrote:
On Thursday, May 15, 2003, at 08:50  AM, R Seiji wrote:
In the processes of configuring installation on the above system. Have 36MB RAM and have upgraded CPU to 040 (from LC). Keep getting the following alert:

Unexpected IRQ 3 on device 00000000

Any ideas on how to eliminate. Doesn’t seem to affect anything, but is annoying when watching the terminal.

I have seen this problem on my LC475 also.  As I haven't seen it on any
of my other Macs, I thought it was a hardware problem with my LC475. It's interesting to hear others have the same problem and that it's
limited to the 475/605 boxes (which are essentially identical
motherboards).  Dana if you happen to remember what this is related to
it would help me in tracking down where/how to handle it in the kernel
code.  Could it perhaps be related to memory?  The frequency of the
messages seemed to increase when I upgraded from 36 MB of RAM to 68 MB.

I've seen this on my Quadra700 and Quadra650 in before Penguin 19 times, when the onboard Sonic Ethernet wasn't shut down completely and the Mac was started with extensions. Penguin 19 gives a message about being more 'forceful/agressive' in shutting down the Sonic, and the "Unexpected IRQ 3 on device 00000000" messages haven't returned. Both Quadra's had/have their memory upgraded by 16 Mb, the same 16 Mb even. The 700 had a worthless CPU with caching problems, the 650 is OK (but at the moment doesn't have a working SCSI disk).

HTH, Erik.
Erik C.J. Laan				elaan at dds.nl
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