I wrote:
>> You have several PB500s IIRC. Have you tried swapping the HD from
>> one of the working 'Books to the naughty, misbehaving 'Book?
>>
>> Also, I cannot recall the details of your various PBs 500, do all have
>> the same amount of RAM?

to which gianfranco replied:
>I did not replace the HD, but for my latter try I erased the HD of
>the "bad" book and copied over in SCSI mode the HD content from another
>working one.
Do try swapping  a known "good" already-setup drive into the bad 'Book. 
Copying a good system is not as complete a test as using an actual "good" 
drive. Also, that HD is on the smallish size, is there enough free HD 
space? You should have at least a couple dozen MBs of free space.

>I currently have 3 "complete" units:
>540c 68040 33 MHz, 36 MB RAM
>520c 68LC040 33 MHz, 20 MB RAM
>
>the misbehaving is a former 540c (unknown condition, missing parts), that
>I have equipped with a known good  68LC040 25 MHz daughtercard (it won't
>boot with the original daughtercard), a 130 MB HD, 32 MB RAM card and the
>modem, all pulled from a working 520c. Now that I think of it, could it
>be a mismatch between the 540 motherboard and the 520 daughtercard? It
>was stated in the past in this list that all parts are interchangable 
>between 520 and
>540. Maybe this is not true? I'll try replacing the motherboard with the
>one from the spare 520 I have and will report. While disassembling, I will
>try a simple HD substitution as well. By the way, anything else works fine
>in the 520/540 hybrid...

The logic boards are identical between the 520/540 series. Certainly 
swapping in known-good LB is an excellent test. However, I'd try some 
easier things first (one thing at a time of course), swapping the HD, the 
ram, the processor, etc.

I also forget the exact problem - did you say Appletalk _does_ work, but 
that TCP/IP does not? Or am I confused at usual. :-)  _If_ that is the 
case (not the my-being-confused part! :-), it's almost certainly a 
software issue.

Dan K

.................................
http://macdan.n3.net/
carracho://dankephoto.dhs.org:9700
hotline://dankephoto.dhs.org:9500
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