Emax

This sounds like it could also be heat related. 

Emaxen are 20 years old now.

If you know your soft/firmware are okay and your 5V is
somewhat in spec then...

CAREFULLY reseat every chip and every connection on
your motherboard. This includes the big, fat one. This
will take time. Control static electricity as much as
possible, you absolutely don't want to pop your E-Chip
or any of the custom PAL's.

Practice this on something that you don't care about
to get the hang of the way it feels when you slide the
small flatblade screwdriver underneath and patiently
pry them up. Think old 386 motherboards...

It isn't even necessary to completely remove the chips
from the sockets. Just merely move them around some.

Take a sharpie marker and mark the orientation of any
connectors you may remove. In fact, I reseat every
connection on everything that comes through here when
I get something. You are breaking up little oxidations
and the like between the metals.

This is very common on E-mu gear- EIII, EII, SP-12,
SP1200...

[w]


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