A longer time ago, sound cards used to have expandable RAM too.
Go back far enough (486) and cache was off-chip on simms too!
Go back far enough (486) and cache was off-chip on simms too!
They usally came in 8 to 16 discrete chips with pins on both of their sides, to be soldered on board, or plugged into sockets.
Plus one or two 'tag-rams' as chips of the same size.
All depending on the chipset, its cache-controller, and which capabilities the board-maker decided to use/expose/support. Which sometimes the BIOS would get wrong, still :-)