ram bus speed

[rakinchyyyy2]

my physical ram shows 2666mhz bus speed. but task manager shows 2400 bus speed.

actually what is exact ram speed?? i want to add another ram in second slot. which speed i should choose????

[Paul_Tikkanen]

Hi:

According to the processor specs at the link below, page 4, the maximum speed every 8th gen core processor listed can run the memory at is 2400 MHz.

https://www8.hp.com/h20195/v2/GetPDF.aspx/c06142921.pdf

Since your notebook has a 2666 MHz memory chip, it bridges to 2400 MHz to match the max FSB speed of the processor your notebook has.

DDR4-2666 MHz memory is no more expensive than DDR4-2400 memory, so to have consistency with your hardware and to avoid compatibility issues, buy another 2666 MHz memory chip.