HP41-CL - Module behaves differently than on 41CX

[rprosperi]

(12-29-2017 10:28 PM)PeterP Wrote:  I have a module - COGO41 - which behaves nicely when plugged into port 3 after a "MEMORY LOST" on a HP-41CX, showing up as 'COGO41A3', 'COGO41B3', 'COGO41C3', 'COGO41D3' in Cat 2. It uses XROM nr 4, 5, 6, 7. (verified)

Some other thoughts:

You specifically mention that it works when plugged into Port-3.

a. Does it also work in other Ports?

b. Is the 3 also seen in the CAT 2 Module names a result of being in Port-3 or just a coincidence?

c. Is it possible one or more of the .ROM image files (or single .MOD file) are damaged?

4. When you say it works in a real 41CX, do you have the original module, or do you have them loaded in a NoVRAM module? If real module is available, maybe try creating new images?