Here are some basic ones for you until we know what card you have

c:acatune >NIL:
(Just runs ACATune nothing more, this is good for any ACA card and if you have 3.0 Rom in an A1200 for example this will add the Ram of an ACA12xx)
c:acatune -maprom * >NIL:
(This will map your 512k Rom to the Ram on the ACA card and works on all ACA cards, use ** for 1mb Rom's on A1200)
c:acatune -maprom 'path to rom file here' >NIL:
This will map your own kickstart image file into the ACA's Ram, an example if you keep ks31.rom in your Devs: drawer would be:
c:acatune -maprom devs:ks31.rom >NIL:
This next one is for ACA620 only and is needed to use all the Ram available on the card:
c:acatune -maxmem >NIL:
This gives you the full 10.5mb Fast Ram instead of the 5mb auto config.
You can use any of the above commands along with it too, an example would be:
c:acatune -maprom * -maxmem >NIL:
This would map your onboard Rom to Ram and give you the full amount of memory available.
To check if it worked just open CLI and type:
acatune -status
It will list which options are active

There are many more combinations, the ACAtune readme will explain them all in detail, some of the options can make your Amiga unstable, some don't work with all ACA cards so please read about them and don't just make a massive line with everything enabled!
Have fun
