Hi Dimitrios,
That rev 4.0 board is the original German A2000 board. Don't buy it!! It has the A1000 chipset and is a disaster! It has the thin Agnus, i.e. can only address 512K chipram and can't be upgraded to a fat Agnus. It has no Buster chip for the expansion slots and thus is very unstable with expansion boards. :madashell:
The first Amiga I bought was an A2000 with a German rev 4.0 motherboard in it. I got a GVP HC+8 SCSI/Memory board and it kept randomly hanging. I was an Atari ST fanboi before I bought this Amiga and was very unimpressed! I then bought a GURU Rom for my GVP board and that solved the problem. The hanging was caused by the GVP card DMA-ing into the chipram. The GURU Rom had a command to specifically avoid DMA-ing into chipram and then it worked OK. When I added my IO BLix multi I/O card the machine would just randomly crash.
After a bit of research, I discovered that the rev 4.1 and upwards motherboards used the A500 chipset and were much more stable as well as being able to use a fat Agnus for 1MB chipmem. I replaced the mobo in my A2000 with a rev 6.2 and has been as solid as a rock. I've currently got a GVP 030 accelerator, GVP HD+8 card, IO Blix card, A2286 bridgeboard, MiniMegi 2MB Agnus, ISA VGA card, Soundblaster 16 and a 3Com ethernet card installed in my machine and it's 100% stable. (It did take a LOT of tinkering to get it all working together, but now runs beautifully)
As long as the rev 6.2 motherboard you mentioned works with all that battery damage, I'd rather go for the rev 6.2
My rev 4.0 board is sitting in my cupboard, it still works, but I'm keeping it for donor parts for my rev 6.2 board.
I'm not trying to sound very negative, but my personal experience with the rev 4.0 board was not good.
Cheers!
