Paul asked the following:

>>Does anyone know if 512MB and 768MB memory boards are supported on the
>>99x Corporate systems under MPE/ix 5.5?

Response: Yes, they are supported even prior to 5.5 according to the HP 3000
Configuration Guide (Page 2-38). They are typically used for configurations
above 2.5 GB which became supported in the 1st half of 1996.
Hope this helps.