What is the minium amount of DIMMs you can install with a 64 bit data bus?

The minimum number of DIMMs (Dual Inline Memory Modules) you can install on a system with a 64-bit data bus is typically one. However, for optimal performance and to fully utilize the memory bandwidth, it is often recommended to install at least two DIMMs in a dual-channel configuration. This allows the system to effectively access 64 bits of data simultaneously, leveraging the full potential of the memory architecture.