As far as memory DIMMs, some 128MB DIMMs that employ an 8K refresh are known to pose potential problems. 128MB DIMMs are typically composed of 16 chips, each a 16Mx4 part. There are two types that are used, the "4K Refresh" and the "8K Refresh". The Crescendo/7200 is not compatible with some DIMMs made with "8K Refresh" parts because the timing margins are so thin that the electrical "noise" generated by the card causes errors. The "8K" versus "4K" parts can be identified by the part numbers of the chips on the DIMM, or by checking with the manufacturer of the chips.
At this time, the only PCI expansion card known to be incompatible is the VillageTronic MPDD+ video adapter.
Due to the nature of the issues listed above, Sonnet does not expect them to be resolved. Users are advised to utilize alternative solutions.
