Memory performance depends on several variables, such as memory mode, memory speed, memory ranks, memory population and processor.
More information about optimizing memory performance and configuring memory is available at the Lenovo Press website:
In addition, you can take advantage of a memory configurator, which is available at the following site:
Lenovo Enterprise Solutions Configurator
For specific information about the required installation order of memory modules in your server based on the system configuration and memory mode that you are implementing, see Memory module installation rules.