MicroVAX I update the 3rd, now being serialised in a local newspaper near you :)

More googling shows that the MV I and the MicroPDP can be very easily interchanged since they share memory modules etc, so I dug out my 11/73 and proceeded to spend a while tinkering with RT-11 again for the first time in nearly 10 years - there were files on there I'd changed in april '94 :) Looks like the RD54 (not the one I used as a load on the VAX) is possibly fading 'cos I got some overlay errors, but anyway.... The PDP still runs fine with the M7551 memory from the VAX so I know it's not a board issue I have with the VAX. Next thing to do I suppose is 'borrow' the PDP's cab to test the complete set of VAX boards, once I verify the PSUs are the same. That's a job that needs a lot of space which I don't have so I'll have to invade the kitchen next week when everyone else is out the house and hope I don't run into problems :) cheers -- Adrian/Witchy www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(