I got my hands on an old Quadra840av. The board was not booting. LED powers on, no chime. Power supply works and i can see all the power rails working. I went ahead and recapped with tantalums, as there was leakeage. Found a couple of corroded traces next to 2 caps which i was able to scratch and repair with wiring. Board still not booting, same symptoms. LED on, no chime. Battery was not leaking, went ahead and replaced that too.
Any ideas on what else to look for on this board?