How many different revision boards are there?
I know of 3, 5, 6a and 8a? are there others?
I'm fairly confident you'd be able to work out what revision the board is, but I only have a 6a and 5 to look at, but can easily tell the difference without opening the case...
How would you work it out?
There is a Rev 8A.1 as well. I think there is a Rev 7 as well. There may be others.
I am sure if Piru was here he could help and explain it. But he's not. But, just think along the lines of his whichamiga program. It sometimes states that "Your computer is probably an Amiga 1200"...or..."Your computer is an Amiga or compatible"...or...sometimes spot on specifically "Your computer is an Amiga 1200". Sometimes you can be confident, sometimes you cant.
And that is the also part of the problem with telling the motherboard revision via a software program. The software program doesn't know for example that "you've owned the computer since new" and that "you know it has never been opened" and therefore can't reliably use any kind of hardware spec peeking code to accurately tell you what the motherboard is based on expected specs. The software doesn't know if it's been modified. It could assume, but not know.
What if Agnus has been changed? What if Denise has been upgraded? What if Kickstart has been changed? What if a chip RAM hack has been done? What if all these changes and more were done to one motherboard?
At best, a software tool may be able to state "Your motherboard is *probably* a Rev x" based on expected specifications....but not accurately "Your motherboard *is* a Rev x".
In saying that I haven't specifically sat down and made a table of motherboard and related specs and cross referenced the possible outcomes.
In saying all the above, I was wrong once, but that was a looooooooooong time ago
