8 Feb
2016
8 Feb
'16
10:33 a.m.
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 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