What type of memory does the A4000 use?
The A4000 comes with 2M of Chip RAM, either in a single SIMM or surface-mounted on the Motherboard. There are four SIMM sockets for expansion memory (Fast RAM). These sockets hold 72-pin SIMMs, either 1M or 4M in capacity, 80 ns or faster. It is not possible to mix 1M and 4M sizes, although it has been reported that 8M SIMMs can be used in place of two or four 4M SIMMs. To fit properly, these SIMMs must be single-sided modules. The total motherboard Fast RAM limit is 16M, regardless of SIMM combinations. (These specifications describe the motherboard memory; expansion boards may use other types of memory.
