> > > > If one read notes in the PDP-11/04 printset it says: Do not insert a M930 > or M9302 in a MUD slot. Only in the Unibus slots or you will have short > circuit. On the other hand it does not say that the M9301 (or M9312) cannot > be installed in a unibus slot. It recommends that those boards go into MUD > slots. But electrically I cannot see that it shouldn't work. Especially if > you jumper W1 - W5. > >
Once I tried putting a M9312 into the backplane of my 11/05 NC. The M9312 did not boot to the console monitor, but there should be a way to do it, I just did not find it. I have an expanded backplane. If you look at the M9312 or M9301 you can surmise that these are not going to do anything like what the M930 does M930: http://vintagecomputer.net/digital/pdp11-05/EM_8Kx16_Planar_Memory_companion_card.jpg The M9301 is a ROM card, just like the M9312, one is an older model and they're compatible roughly I believe. I recall from the manual that one could use the M9301 in an 11/05, but was not able pursue if it works yet for my set up. I will eventually check this, but if there is a test you'd like me to try send and I will fire up the system. I have the manual, I'd want to read up on it first to be sure I am installing correctly. Not sure what ROM is installed on the card I have. b -- @ BillDeg: Web: vintagecomputer.net Twitter: @billdeg <https://twitter.com/billdeg> Youtube: @billdeg <https://www.youtube.com/user/billdeg> Unauthorized Bio <http://www.vintagecomputer.net/readme.cfm>