The cure seems to be to remove the additional 16MB.
I don't think I have a faulty simm, since both banks work OK, if
alone.
I seem to recall that there was something about a hole around 16MB to
be left for use by controllers (SVGA???), but I am unable to find the
relevant information anny more.
My system is a Pentium166, PCI VGA S3Trio64V+, SoundBlaster16,
Cardinal Modem Internal and the usual on-board peripherals.
I would really appreciate any pointer to pertinent docs.
Thanks for your time
Mauro