Installing more memory on MSI B250M PRO-VDH

[armandoeramos]

I have a Ballistix 8GB Ballistix Sport DDR4 2400 MHz UDIMM Memory (2 x 4GB) on the first 2 of the 4 memory slots on my MSI B250M PRO-VDH and I'm think of adding one Ballistix Sport LT 8GB Single DDR4 2400 on slot 3. Will this work?

 

[parker_307]

no you would have to add 1 more to fill all slots. there cannot be an odd amount of memory sticks on a four channel board the multichannel memory will not get activated and it will not work.

 

[Calvin7]

Crucial guarantees the rated speeds of any memory to be obtainable only in the kit it is sold in. If you are adding an additional set of memory, the rated timings may not work due to the extra stress on the memory controller. Therefore, you will need to relax the timings and/or frequencies in order to get two sets of memory to work. Another option you may need to do is increase the dram voltages or reducing the CPU multiplier.

Rules to enable dual-channel mode
To achieve dual-channel mode, the following conditions must be met:
•Same memory size. Examples: 1 GB, 2 GB, 4 GB.
•Matched DIMM configuration in each channel
•Matched in symmetrical memory slots

Configurations that do not match the above conditions revert to single-channel mode.
https://www.intel.com/content/www/us/en/support/boards-and-kits/000005657.html