Can You Fill All Ram Slots Average ratng: 7,4/10 9319 votes

Or, you could remove the modules that shipped with it and install 4x8GB (8GB modules in all 4 DIMM slots for 32GB total). The main thing is that you need to install memory in matched sets of 2 DIMM modules (using pairs of 2GB, 4GB or 8GB modules in the available slots).
Comments I see online often mention the ' cannot fill all slots' rule for DDR4 3200+ memory on 300 and 400 series motherboards. I will start adding this addendum to my QA's.

Do You Have To Fill All Ram Slots

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

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3 (3 banks of 1) This indicates that there are 3 memory slots. These are divided into 3 banks, and each bank consists of one memory slot. So you can add memory one piece at a time for the system to use. 4 (2 banks of 2) This indicates that there are 4 memory slots.