Question can i use rams with different SPD?

[rzm_sikorsky]

Hi
can I use two same rams of the same brand, capacity, speed, and CL , but different SPD in my laptop? as you can see in the photo, for the upper one SPD is 12 and for the other one it's 13.

Thanks

 

[Third-Eye]

Hi
can I use two same rams of the same brand, capacity, speed, and CL , but different SPD in my laptop? as you can see in the photo, for the upper one SPD is 12 and for the other one it's 13.

Thanks

If you can't change the memory timings, the motherboard will use the timings of the module with looser timings. In this case, both modules have the same specs and timings. HMT41GS6AFR8A is newer.