This thread is a collection of notes taken to get started with this DecServer 550 with 11/83 cards (left three slots). The remaining cards currently in the slots would need to be removed and replaced with others suited to a 11/83. As I got the machine the cards were not plugged in.
threads to review:
SO far I have:
M8190 AE (CPU)
M8637 EH (or EA?) RAM
M8637 EH RAM
need to complete build using QBUS cards on hand.
look to see if I can find RA72 drives and cables within my inventory. I have the correct controller cards: M7164 qbus sdi disk adapter 1 of 2
M7165 qbus sdi disk adpater 2 of 2
I read one can make a SDI cable from an ethernet cable if I don't have an actual SDI cable.
Even better, I have these as my best candidate cards to attempt to use SCSI storage in the 11/83 (installed in a Decserver 550 chassis):
KZQSA M5976 -SA SCSI - I thought this was not compatible, but I have seen some evidence that it may be.
EMULEX QT1410402-00 REV C SCSI - VAX CARD or QBUS or both?
I have to get educated. Up to this point I put off dealing with QBus and stuck to UNIBUS or Vax/Alpha. I also have a M7504 QBUS Ethernet Adapter that I believe I can put in there. Might make for a nice tweener DEC PDP/11 with modern capabilities.
Glen Slick writes:
If you want to set up a BA215 as a PDP-11 a nice way to go is with an S-handle M7554 KDJ11-D DECserver 550 CPU, the 18MHz version with 1.5MB. Sometimes good deals on those can be found. Then add either a 2MB M7551 MSV11-Q or a 2MB M8637 MSV11-J for 3.5MB. Add an S-handle M3127 DESQA Ethernet controller, and an M3119 CXY08 if you want more than the 2 async lines on the M7554 KDJ11-D. If the BA215 box came with any DSSI drives installed add an M7769 KFQSA. The KFQSA is MSCP compatible so later PDP-11 software should be able to use it.
If you can find a decent deal on a BA215 box it is worth grabbing one.
Most of the time I would rather work on a BA215 box than a BA23 /BA123 or BA215 / BA430 / BA440 box (ok, the BA440 VAX will be much faster). In some cases only 6 slots might be limiting if you wanted to use something like a 3 board set M7168 / M7169 VCB02 or a 2 board set M7164 / M7165 KDA50-Q.