can I use any 68040 chip in a mac ? - test-drb@ccmp.vtda.org

12 Jul 1998

...
      I came across a performa 636cd, (i know, under 10
yrs by far.) but this
 is a more generic question. It has a 68LC040 processor; I need a straight
 68040 for NetBSD...  is it possible to nab one of these from someplace and
 just put it in? besides any clock speed issues & whatnot, are they all the
 same "under the hood" ? or are they all different. I guess this applies to
 several other systems I have, since I'm interested in upgrading other things
 as well. any info appreciated. thanks! 
On all 68LC040 Macs you just need to exchange it with
an 68040 to get the MathCo. Just check the frequency.

But using a 636 for NetBSD isn't a good idea - any
486-PC will give the same or better performance - but
while using Mac OS 8 the 63x are just fine machines.

Gruss
H.

P.S.: don't forget the memory update - the 63x Macs
can use 36 or 52 MB of Mem, depending on the mobo
revision. If you have 1 SIMM slot, add a 32MB module,
if there are two slots, use a 16 MB modul in the outhermost
and a 32 in the innermost slot.

--
Ich denke, also bin ich, also gut
HRK