Bill,
I assume you are talking about the extra memory modules added to support creating new voices etc.?
If so the procedure is:
1. Select "voice creator"
2. Select "Custom voice bank edit"
3. Select "Property" in the bottom right corner
4. The "Wave Ram" will show you what is installed and the other data below what you have used etc.

If you are talking about the internal memory built into the T2 then I do not know if there is a procedure.

Dick