A long shot, but does anyone happen to know the [external] DIP switch
settings for a Sperry 3070-08 PC (a bit of googling suggests it's a Sperry
"HT")?
I think I may have accidentally flipped some of the ones on the back of
mine - the system's now stuck in a repeated-beep loop with no display init,
so possibly it's looking for RAM where there isn't any (OTOH, it just moved
locations, so I'll re-seat boards etc. just in case - but I'm reasonably
sure that I caught the switches at one point, so it'd be useful to know
where they should be set at for my particular config).
cheers
Jules