On 2014-05-21 01:41, Cory Smelosky wrote: On Tue, 20 May 2014, Cory Smelosky wrote: On Wed, 21 May 2014, Johnny Billquist wrote: D'oh! my 1M RAM board was set to 18-bit mode, not 22-bit. My SCSI controller seems to dislike it on 22-bit, though... QBUS BUS CONTROLLER TEST#1.......................... FAILED *** FAILED DUE TO UNINITIALIZED Q-BUS MAP, DMA FAILURE OR NON-EXIST MEMORY. QBUS BUS CONTROLLER TEST#2.......................... FAILED *** FAILED DUE TO UNINITIALIZED Q-BUS MAP, DMA FAILURE OR NON-EXIST MEMORY. QBUS BUS CONTROLLER TEST#3.......................... FAILED *** FAILED DUE TO UNINITIALIZED Q-BUS MAP, DMA FAILURE OR NON-EXIST MEMORY. QBUS SINGLE WORD DMA TEST........................... FAILED *** FAILED DUE TO UNINITIALIZED Q-BUS MAP, DMA FAILURE OR NON-EXIST MEMORY. QBUS TO FIFO DMA TEST............................... FAILED *** FAILED DUE TO UNINITIALIZED Q-BUS MAP, DMA FAILURE OR NON-EXIST MEMORY. QBUS TO SCSI READ/WRITE THROUGH FIFO TEST........... FAILED *** FAILED DUE TO UNINITIALIZED Q-BUS MAP, DMA FAILURE OR NON-EXIST MEMORY. ...is my backplane not 22-bit?! I know very very little about it. http://bitsavers.trailing-edge.com/pdf/clearpoint/Clearpoint_QRAM-22B_User_… is the RAM board, http://bitsavers.trailing-edge.com/pdf/cmd/MAN-000420-000_CQD-420_May94.pdf is my SCSI controller.\ I tried a MicroVAX II in this backplane earlier and it...errr started to smoke and the little display panel just said F. Smoked the uVAX? That's a bad sign. I would otherwise have guessed that maybe your memory card is not actually strapped to address 0 when you look at all 22 bits? Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol