Re: KDJ11-B PDP 11/73 getting stuck in Exit standalone mode diag #56

Hi Bill, > > From: cctalk [cctalk-boun...@classiccmp.org] on behalf of Mark G Thomas via > cctalk [cctalk@classiccmp.org] > Subject: KDJ11-B PDP 11/73 getting stuck in Exit standalone mode diag #56 > > Hi, > > I picked up an

RE: KDJ11-B PDP 11/73 getting stuck in Exit standalone mode diag #56

From: cctalk [cctalk-boun...@classiccmp.org] on behalf of Mark G Thomas via cctalk [cctalk@classiccmp.org] Sent: Sunday, April 2, 2017 2:49 PM To: cct...@classiccmp.org Subject: KDJ11-B PDP 11/73 getting stuck in Exit standalone mode diag #56 Hi, I

RE: KDJ11-B PDP 11/73 getting stuck in Exit standalone mode diag #56

] on behalf of Noel Chiappa via cctalk [cctalk@classiccmp.org] Sent: Tuesday, April 4, 2017 6:35 PM To: cctalk@classiccmp.org Cc: j...@mercury.lcs.mit.edu Subject: Re: KDJ11-B PDP 11/73 getting stuck in Exit standalone mode diag #56 > From: Glen Slick > the Q22/Q22 backplane is no

Re: KDJ11-B PDP 11/73 getting stuck in Exit standalone mode diag #56

> From: Glen Slick > the Q22/Q22 backplane is not good for an 11/83 CPU ... M8190 boards and > both have PMI signals on the CD half of the CPU board. So I seem to recall hearing tales of PMI cards emitting smoke when plugged into a Q/Q/ backplane. That doesn't seem to have happened

Re: KDJ11-B PDP 11/73 getting stuck in Exit standalone mode diag #56

On Sun, Apr 2, 2017 at 11:49 AM, Mark G Thomas via cctalk wrote: > > Unfortunately, I discovered slots are all wired Q22/Q22, no top ABCD > (Q22/CD) PMI slots like a BA23. So, not good for an 11/83 CPU wired > for PMI on slots C-D. > > So, I was hoping I could get my

KDJ11-B PDP 11/73 getting stuck in Exit standalone mode diag #56

Hi, I picked up an empty 4x8 Q-bus chassis at VCF-East this year. It's labelled "USDC CSS-823 Processor System" on the outside. It's not a DEC backplane, but the chassis is light aluminum, smaller and in some ways nicer than my pile of BA23s. It includes a switching power supply, LTC and