The library consists of a number of functions to control LCDs with 4-bit data interface.
it is not in any way DIMM dependent.
8-Bit Interface Down below are the exact steps to initialize the LCD module for 8-Bit line interface.
INTERFACING OF LCD WITH ATMEGA32 AVR MICROCONTROLLER.
initializes the LCD driver.
It has a lot to do with the actual DIMM count.
CAS Latency matters too, but 3200 MHz CL14 is roughly equivalent to 3600 MHz CL16.
its entirely dependent on the platform you use and where the DIMMs are placed.