replacing 71b batteries without losing data

[rprosperi]

(07-15-2023 08:43 AM)KimH Wrote:  So I took 2 machines and tried it

All modules out except IL - did an OFFIO just in case
[snip]

Aha, I wonder and now suspect this may be the difference. All of my 71B units have modules installed in 3 or 4 of the front ports, and of those most have RAM modules. In addition, most of them also have RAM or RAM/EPROM or FRAM modules in the Card Reader port.

Given that the 71B h/w seems to prioritize power to modules over MAIN RAM (since often the former is preserved while the latter is lost) it appears this could be making a big impact.

@Garth - thanks for confirming. Does your 71B have modules installed when you replace batteries?