I currently have Gigabyte GA-B250M-DS3H mother-board and 1x 8GB DDR4 RAM with 2133MHz speed and CAS latency of 16.

Now if I install 1x 16GB DDR4 RAM with 2400MHz speed and CAS latency of 16.

Is my system going to be unstable?

I know that if there are RAM with different speeds the faster one automatically down clocked to match the slowest one.

I do not require fast memory speed, even dual channel is not my concern, I just need more capacity.

Furthermore I Googled and looked for similar topics in sites like Tom’s Hardware but the answers are mixed, some says yes, some says technically it should and some says no, so I am confused.

Lastly I know most people suggest going for the identical DIMMs but right now that 16GB DIMM is cheaper on Amazon than my current DIMM.

  • 1
    Generally no, you can use RAM's of different capacities with no issues. – CaldeiraG Nov 27 '19 at 14:42
  • 1
    No. Especially not with modern systems. Your system will not crash. – JakeGould Nov 27 '19 at 14:53
  • Thank you for your answers, that does actually clear the confusion thanks again CaldeiraG and JakeGould – Digvijaysinh Gohil Nov 28 '19 at 11:13

The RAM seems to be compatible, but I cannot of course guarantee it.

If you check the Crucial website, it guarantees the compatibility of RAM sticks that seem very similar to yours.

The specs of your VENGEANCE® LPX 16GB (1 x 16GB) DDR4 DRAM 2400MHz C16 Memory Kit:

enter image description here

The Crucial Crucial 16GB Kit (2 x 8GB) DDR4-2400 UDIMM:

enter image description here

Final note about prices: Your price in Indian Rupees translates to $71.35. The Crucial stick is $63.99 and is guaranteed (but I don't know about shipping costs).


Okay so I bought that 16 GB DIMM which I mentioned in the question, Installed it in the different slot, different colored slot, because I thought dual channel would mess something up.

Both DIMMS 8GB and 16 GB running on 2133 MHz speed, as I mentioned faster one automatically gets down clocked.

It has been nearly 2 weeks and everything is working fine no crashes.

Lastly Thank you everyone for the help really appreciate it.

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