RAM on 15m-cn0012dx running at 2400mhz.

[SpinelessAQ]

I upgraded my RAM from (2400mhz, 8gb x 1 + 4gb x 1) configuration to 2600mhz, 8gb x 2 configuration, so total 16gb now.

The problem now is it does not detect my RAM as 2600mhz and runs it underclock at 2400mhz. 

The reason i upgraded ram was not because of the Memory but Speed aswell. I read it here that it can support with 2666 aswell. What could be the issue? 

Solved: HP ENVY x360 - 15m-cn0012dx Ram Upgrade able? - HP Support Community - 7632064

[Paul_Tikkanen · Accepted solution]

Hi:

Your notebook's Intel® Core™ i7-8550U processor can only run the memory at a max speed of 2400 MHz, so it is completely normal for any memory faster than 2400 MHz to bridge to 2400 MHz.

Specs on the processor below...

Intel® Core™ i7-8550U Processor (8M Cache, up to 4.00 GHz) Product Specifications

[banhien]

@SpinelessAQ 

Its specs

                https://support.hp.com/au-en/document/c06017672

You can install 2666MHz or 3200MHz RAM but machine will automatically downgrade to 2400MHz.

Regards.

[SpinelessAQ]

Hi Paul,

Thank you for getting back.

I thought RAM speed is independent and not controlled by Processor. Could've saved me the upgrade. 

No worries and thank you so much. 🙂

[Paul_Tikkanen]

You're very welcome.

The memory can only run as fast as the processor will allow.

In some cases, the chipset controls the memory speed, but only slower, not faster.

For example, I have a business desktop PC that has a 1333 MHz FSB processor (Intel E8300), but the memory will only run at a max of 800 MHz, which was the Intel series 3 chipset limitation with DDR2 memory.