Amiga Sidecar A1060 upgrading RAM

[amigafeeling]

Hi,

I actually own this extension for my A1000 : a Sidecar A1060.

There are already 512 Ko on the motherboard.

I saw on the web that i can reach 640 Ko with an old ISA XT memory board.

I own this one, with 2 Mo on the board :

https://th99.bl4ckb0x.de/i/A-B/50227.htm

But during the boot of the PC, it cannot see this new RAM ...

It is sure that we can upgrade until 640 Ko on the A1060 ?

If so, do you have some ideas ?

Thanks.

[amigafeeling]

Thanks for your answer.

--> The four bank RAM are filled.
--> I tried :

SW1/1 OFF SW1/2 OFF SW1/3 OFF SW1/4 OFF and SW2/7 OFF SW2/8 OFF

But don't work : i stay at 512 Ko at start.

And :

SW1/1 OFF SW1/2 OFF SW1/3 OFF SW1/4 ON and SW2/7 OFF SW2/8 OFF

But don't work too.

What switching do you advise me ?