As CPU data bus sizes increased, so too did the need for RAM wide enough to fill the bus. The Intel 80386 CPU, for example, had a 32-bit data bus and thus the need for 32-bit-wide DRAM. Imagine having to line up 32 one-bit-wide DRAM chips on a motherboard. Talk about a waste of space! Figure 5-6 shows motherboard RAM run amuck.
As far as I know, the expression run amuck is only used in an active type of sense in that something or someone can run amuck, but it cannot be run amuck by someone else. Is my thinking valid?