27 May
2020
27 May
'20
1:17 p.m.
Ok, so we banged the MSV11-P revision B/C memory issues into the ground
(looks like the problem is burst mode DMA on Q Bus can cause random
failures that corrupt disks) however does anyone know if the bug will
affect the board if you use it as a normal Q bus memory board?
In other words, if you put the board *below* an 11/73 or 11/83 so it
reports as a non-PMI memory will it still have the same problem? I'd
like to run my system with a full 4mb of memory, using my normal parity
2mb board and a 2mb MSV11-P board that was from an 11/83?
Inquiring minds want to know :-)
C