Are these matched sets of 4x identical modules ?
Mixing different modules with different speed or other chips in the same ram bank often gives unpredictable results.
The longer boot time with 4MB is normal, however it's not taking minutes, about 20 to 30 seconds I suppose.
If you have an unstable system and the rams are known good, then recapping of the logic board and the Analog board is definately a good idea, certainly if you want to use the machine regularly.
You could run ProVue ramtest on your Mac Plus for 12 hours to exclude ram problems, however if the machine is not recapped yet, It may not last this long.
What voltages do you get at the +5, +12v and -12v lines measured through the external FDD connector ?
Mixing different modules with different speed or other chips in the same ram bank often gives unpredictable results.
The longer boot time with 4MB is normal, however it's not taking minutes, about 20 to 30 seconds I suppose.
If you have an unstable system and the rams are known good, then recapping of the logic board and the Analog board is definately a good idea, certainly if you want to use the machine regularly.
You could run ProVue ramtest on your Mac Plus for 12 hours to exclude ram problems, however if the machine is not recapped yet, It may not last this long.
What voltages do you get at the +5, +12v and -12v lines measured through the external FDD connector ?