🚀 go-pugleaf

Hello Again, another technical puzzle (to me).

Q. What is different between 11/84 memory and 11/83 memory.

I was just about to pull apart an 11/84 to build up an 11/83 system
and I noticed that the DEC book lists the following:-

MSV11-JB   1MB ECC MEMORY (M8637-BA)	for 11/84
MSV11-JC   2MB ECC MEMORY (M8637-CA)	for 11/84
and
MSV11-JD   1MB ECC MEMORY (M8637-DA)	for 11/83
MSV11-JE   2MB ECC MEMORY (M8637-EA)	for 11/83
and
MSV11-RA   1MB PARITY PMI MEMORY (M7458-AA)  for 11/84-P,11X84-P

Can I use the M8637 memory modules from an 11/84 box in a normal
BA23 system?

Do I need to change any jumpers or anything?

Any help gratefully received.

Regards, John G.	(e-mail replies preferred)
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  John Geremin,  Trainee Guru,  PDP-11 SIG,  DECUS Australia, 
IN%"geremin@decus.com.au"        voice:  61 2  764 4855 (home)
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