Originally Posted by Jacques
For those who are not afraid of soldering and don't bother losing warranty or their warranty-period is already over...
You can add "missing" 2 MB on top of the card, thus giving ACA500 4MB FAST-RAM in TOTAL. Firmware IS detecting it.
That is a very nice discovery.
Going from 2MB to 4MB on the ACA500 will make a massive difference with its usability when using it without any ACA12xx attached. If using a light WB or launcher, it should run most WHDLoad games with preload if you got 2MB+4MB RAM. It is mostly adventure games that requires more.