Some of the lines to the RAM SIMMs are rotted by the Cap Goo. You need to check the lines out with a multimeter from the SIMM Sockets and adjacent connections to the VSLI chip. Soldering a thin wire to fix the trace if the hard part.
Mind you, there are at least 3 if not 4 or 5 Classic II Boards. I have one of the earlier ones with 4 EPROMs. Some boards have 2 ROMs, other have 4, and either can have jumpers on them or not. It's like the SE board, with 3 or 4 different board set ups for the RAM SIMMs.
The job is not that hard to do, just tedious and time consuming. I mostly fixed my Classic II from dead Schimas Screen to Booting up in 4 hours after a recap - found 2 dead lines rotted by the goo. It still had no audio, again caused by the cap goo, but I'm happy that It boots. I can fix the audio on it some other time.
Thanks Effen, I'm going to check into this more.