RE: AS400 170 - 2289 and 2291 processor memory features

Chris,

Your base memory cannot be upgraded so two of your slots (the 1a pair)
will need to retain the 32 MB DIMMs.

You can add one pair of #3004 256 MB DIMMs.

You can add three pairs of #3002 128 MB DIMMs.

I'm using the V4R5 System Builder as a reference.  They state that the
maximum memory is 832 MB for the #2291.  They also state that there is
no prohibition on mixing the #3002 and #334 DIMMs.  I would imagine that
the limit is enforced somewhere though.

I would suggest that you go with two of the #3002's and two of the
#3004's which would give you the published maximum of 832 MB,((2 x 32) +
(2 x 128) + (2 x 256)).  If you want to experiment, you could try
putting in all four of the #3002's as well as two #3004's.  I don't
think that your machine will go up in flames, but I doubt that it will
recognize all of the memory.

I don't know what to say about your business partner.  If you were
asking about exceeding the published maximum memory, they were probably
right.  If you were asking about whether #3004's are legal in a 170,
they were wrong.

Regards,
Andy Nolen-Parkhouse