[comp.sys.mac.hardware] "Sad mac" problem

lkk@zurich.ai.mit.edu (Lawrence K. Kolodney) (10/19/90)

I hope this is the right place to post this.

I was reading news this evening on my mac, when all of a sudden, I got
a system error.  When I tried to reboot, I got the following "sad mac"
error:

00000004
00000100

This repeated itself each time I tried to boot (or cycle the machine
on/off).  Eventually, I just let it sit for a while, and turned it on
again and now its seems to be working.

I assume that this is a flaky memory chip (based on no information
than that's what it was last time).

Here's my question:  I don't want to take this to some expensive
dealer for repair.  Can I do it myself?  Is the error message enough
to diagnose the problem and replace the appropriate chip?

Its a Mac SE with a 20 MB built in disk.

PLease reply by mail, I don't read this group.

Thanks,
larry kolodney
lkk@altdorf.ai.mit.edu
lkk@eddie.mit.edu