Installing identical memory modules in sets of three per channel maximizes the bandwidth because triple-channel architecture takes advantage of the increased throughput provided by using three data channels. This configuration allows the memory modules to be accessed simultaneously, improving performance over single or dual-channel setups. Incorrect answers include single or dual-module installations, which do not utilize the full potential of triple-channel architecture. Having a mixed set of memory modules can cause the system to default to the limitations of the slowest module or can even cause incompatibility issues.