dpawson@oracle.com (10/26/90)
Hi folks. . .
I posted a message yesterday about this, but it never showed up and may never
show up, so here is a brief try again.
I recently bought a used IIci and have had a ton of problems. Very random
hangs and crashes. I had noted that they always seemed to occur when I pressed
the mouse at some point, but perhaps this is more important: a few times I
have gone to boot and have gotten a bad hardware song. It was a beep followed
by four ascending beeps. Someone today told me that this probably indicates
a memory problem. Sound correct? If so, I would like to locate the problem
further. First question:
Is it the IIci that can automatically detect how much memory is present?
Second question:
If this is true, does this sound like a good approach: remove one bank of
memory at a time (always having the existing bank in the low slots of
course). If I am able to duplicate an error with one of the banks in and
not the other, then substitute a simm from the good set for each of the
simms in the bad set in turn until I get a set of 4 simms that works.
I then know that the simm from the bad set that is currently replaced is
the offender. Of course if I have multiple bad simms. . . :-(
Third question:
If it turns out I have a flakey simm, it would seem reasonable to me that
this could cause many spurious problems and crashes like I have experienced.
Does this sound right to you folks out there?
Please let me know as soon as possible. Post or mail, probably won't make
much of a difference.
Thanks!!!
Dave Pawson
dpawson@oracle.comjasper@ux1.cso.uiuc.edu (10/26/90)
I don'tremember the name of the program, but there is a diagnostic utility (freeware) that APS ships on all of its harddrives that tells what the different chords mean and if I remember, the chords change depending on which bank the bad memory is in. I suppose you could then swap individiual SIMMS until you found the right one. If you can't find it on Sumex or elsewhere, drop me a line and I'll send you a copy. I do it now but I only have it on my machine at home. Nick Jasper U of Illinois jasper@ux1.cso.uiuc.edu