> > > I heard that when Bristol University physics department got its first VAX > > (an 11/750, > > somewhat before my time), it was cheaper to buy 256K memory boards full of > > 16K RAM > > chips, clip them out, clean out the holes and solder in 64K RAMs rather > > than to buy 1MByte > > boards full of 64K RAMs from DEC. And that is what they did.... > > > > > I assume they didn't buy a service contract with that
Almost certainly not. When I was there (many years later) we did a lot of self-maintenance on everything. > machine? I doubt DEC would be real happy with that. Also, > the 64K RAM chips need an extra address pin, were the boards > laid out with that signal already in place? Yes. IIRC there were some jumpers to re-set, but the boards were the same. -tony
