Hi, I have this DATARAM board, which only says "40734 rev B" on the solder side. It's populated with 2 x 18 MK4116 memory chips, so I guess it gives a total of 32 Kw. I don't know how to map it correctly in my PDP 11/05 address space, given that it already has a 4kw core memory mapped from 24 to 28 K. The 11/05 originally came with this setup, but I can't locate the MOS memory by LOAD/DEP/EXAM values every 4K from the front panel. The red led goes off when the bus is reset, and the green one is on. Does anybody know this card and the jumpers settings? Picture: http://www.conservatique.com/pdp/pdp-1105 <http://www.conservatique.com/pdp/pdp-1105> Thanks! -- Stephane http://3w.posterous.com