ZorRAM SDRAM Memory Card (www.amigakit.com)

[whiteb]

Will it require a certain Buster or Ramsey revision?

Well Buster 9 has DMA issues with Zorro 3, No problem for me, I have Buster 11.

[whiteb]

DMA issues are not a problem. A RAM card doesn't do DMA.

True..

but read what David Hayne tells us about it.

http://www.amiga-hardware.com/showhardware.cgi?HARDID=1454

 The Rev 9 part has two bugs that can cause problems with Zorro III cards. One can affect some kinds of bus slave cards, it depends on the card design. This is due to a small flaw in a synchronizer stage in the Level II chip (Level II runs a slightly faster bus protocol than Level I, and also supports burst). The other is a flaw in the Zorro III bus arbiter -- there's a small window in which a Zorro III slave cycle just starting can confuse a bus registration command, locking the bus. Rev 11 solves both problems, so you need it for DMA devices.