2666Mhz RAM for a laptop supporting 2400Mhz RAM

[sharif_uddin]

I have a HP Pavilion 15-CC142TX laptop. It has a 4GB DDR4-2400 SDRAM (1 x 4 GB). I would like to add another 4GB DDR4 2666MHz SDRAM into the empty RAM slot or a single 8GB DDR4 2666MHz SDRAM into my laptop. Does the current mother board support both 2400 and 2666 MHz RAM simultaneously. or will the single 8GB 2666MHz RAM be compatible with the mother board?

Thank you very much in advance.

[Paul_Tikkanen]

Hi:

Yes, the DDR4 2666MHz memory should work but it will run at 2400 MHz.

2400 MHz is the fastest speed your notebook's processor can run the memory at.