Memory upgrades for 4D's

[Gianluigi Zanetti]

We have several Iris 4D 20's and a 4D70 and they all want to have 
their memory upgraded, but SGI wants lots and lots of money to do it.

The memory seems to be in the form of 1Meg simms.  What is the preferred
style?  How fast do they have to be?  The reason I ask is that if we could
use mass market simms they would be at least half the price.

Thanks in advance

Steve Roy         ssr at acm.princeton.edu
Gianluigi Zanetti zag at acm.princeton.edu