Sounds likely that intermittent joints in the device sockets have been causing most of your problems, I see that a lot with A3000s I work on.
Removing/reseating all socketed devices on the motherboard often fixes random crashing faults.
As for the memory type, probably not a big deal as the other guys have mentioned. As each ZIP is 8 bits wide, and A3000 fast mem is 32 bits wide, it uses 4 ZIPs in parallel (4x8) to give you 1Mb at 32 bits.
Therefore, if mixing memory types, try to keep the like ZIPs in the same group of 4.
Framiga: if you want A3000 schematics, grab some off my webserver:
http://amiga.serveftp.netThey're a bit crap, but I hope to have some better ones up there shortly.
The A3000 does have a Ni-Cad battery the same as the A4000, which ONLY powers the real time clock, same as the A4000.
Anthony.
