What does the daughter board in the A1000 do? I opened up my recently acquired A1000 and found this daughterboard. My other A1000 didn't have it.

Is it extra memory? (I haven't hooked the A1000 up yet, so I haven't checked it in WB)

The board is plugged on top of the mobo, connected with a lot of thin copper sticks. And the picture IS from TBBOAH :-D

Agree!

It might be extra memory.  I used to have an A1000 and the RAM expansion was in a hatch at the front of the A1000 case if I remember rightly.

On the picture you can't see all the chips clearly, but the chips that I can see the numbers on are just garden variety 74LS series chips, so I'm not so sure it's a RAM board.

If it is a RAM expansion, then it's likely only the 8 chips in the bottom right hand corner of the board are RAM chips and probably only 256K at a guess.

I'd say that board could have other functions beside RAM.

But hey, I could be wrong.  wouldn't be the first time :-))

I thought it was a whole lot of logic glue chips that later went on the motherboard and then on A500/2000 into Gary.

Have a look here --> Amiga 1000 Rev.A
More pictures here A1000 Rev.A

The A1000 daughterboard appeared on an North American units.
It supplied the Kickstart RAM write Area and had the preliminary Kickstart Boot PAL logic which the Insert Kickstart Boot Disk Screen.

If you installed a Rejuvinator (from Expert Systems) board then this board was removed. Some other Kickstart Boards for the A1000 may have also done this.

Shaf