Fill All Ram Slots

I was able to add RGB capabilities in all 4 dimm slots without technically buying 4-3200mhz vengeance ram sticks. This gave me 2 sticks of RGB only vengeance sticks to add to my 2- 16 GB, 3200mhz in total 4 to completely fill the dimm slots which in return looks amazing.

  1. Fill All Ram Slots Slot
RamFill
  1. Ram question fill all 4 slots or 2 which is better. I have a mother board that has.
  2. There are three (3) DIMM slots for each memory channel; twenty-four (24) total slots. Memory channels1 and 3 consists of the three (3) DIMMs that are furthest from the processor. Memory channel 2 and 4 consists of the three (3) DIMMs that are closest to the processor. ML350p Gen8-IVB Supported Memory.
  3. As other have posted if you have 2 sticks of ram the general rule is to put them in alternating slots. So 1 stick in the first slot, miss the second, place the second stick in the third slot, and then leave the fourth free as well.
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Fill All Ram Slots Slot

I want to use 2 E5 2683 v3 CPU's with the SUPERMICRO MBD-X10DAL-I motherboard. The motherboard has 8 ram slots and supports 2133mhz DDR4. I am thinking about getting a couple sticks of this ram as it may allow for easy expansion to higher amounts of ram. I know with enthusiast grade hardware you don't have to fill all the slots. Let's say I only want to buy two sticks of this to start off with (mostly for cash flow reasons), will the system work with only one stick for each CPU? What are the allowable Ram stick allocations assuming I only use 32GB sticks? For example 1 stick for each CPU, 2 sticks for each CPU, 4 sticks for each CPU? EDIT: The CPU and Motherboard support 256GB of RAM.
Would I be better off getting 8x 16GB sticks and being done with it?
RAM info:
Samsung DDR4-2133 32GB/4Gx72 ECC/REG CL15 Server Memory M393A4K40BB0-CPB