Voyager legacy operating systems. Old CPU board.

I have a couple of older Voyagers in for service, they are the earlier units with the large through-hole computer boards. One of them has OS 2.3 and Boot version 2.4 and the other has the Bob splash screen and OS 3.4 with Boot version 3.4.

Could I ask does anyone know the highest O/S version that the old CPU boards can take? And where I can find the O/S files for these early Voyagers? They seem to be long gone from the Moog website downloads page.

Rudi probably knows, he posts here sometimes. OS files are available on his site:

https://lintronics.de/moogmusic/index.html

I’m pretty sure the os revisions that ummagumma linked to work on all Voyagers.

Hello,

Ditto. Afaik, the later digital board added more memory.
I have current firmware, but never upgraded digital board.
Only needed 128 slots.

The boot screen is user selectable since a certain firmware version. it is not depending on the digital board version.

And the Bob Moog boot screen is worth it!

I smile every time it boots up. Nice job!

RIP Bob