20 Mar
1998
20 Mar
'98
11:02 a.m.
<Now that's where an IMSAI front panel really paid off. You put
<in the card, stored an FF in the first location, the panel
<display show EF instead...bingo, the RAM on D4 is bad (or more
<likely a bent pin or upside down in socket).
Or run NSdos and use the ramtest program. Another solution is load a
monitor into known memory and fill ram with 00 or ffh to detect stuck
bits.
Allison