DDR4 2666MHZ RAM SHOWING 2400MHZ Speed

[SaifAliJoo]

Hi !

I recently upgraded my Notebook (Pavilion 15-cc1x  ). I brought Corsair 16 GB 2666MHZ  and now when i check the RAM speed it is showing 2400MHZ . I am pretty much confused about it.

The RAM which was already installed on my Notebook was Samsung 8GB 2400MHZ, now my RAM Is 24GB (Samsung+Corsair) but with 2400Mhz speed.

The Memory is showing 2400Mhz speed for Both Ram Sticks.

Processor: Intel(R)Core(TM) i7-8550U CPU @1.80GHz

I checked for soultions on Internet but i am not able to find any suitable result.

I hope anybody here can help me out !

Thanks in advance!

[Paul_Tikkanen]

Hi:

For one thing, the faster memory will always run at the slowest speed of the memory installed.

So, one of the reasons the memory is running at 2400 MHz, is it had to downclock to match the slower Samsung memory's 2400 MHz speed.

What model processor does your notebook have?

Full description please.

The memory is only going to run at the fastest speed the processor's FSB can run it at.

[SaifAliJoo]

Hi Paul!

Processor: Intel(R)Core(TM) i7-8550U CPU @1.80GHz

[Paul_Tikkanen]

Hi:

Here are the specs for the processor your notebook has.

You can see from the specs, that the fastest speed the memory will run at is limited to 2400 MHz.

https://ark.intel.com/content/www/us/en/ark/products/122589/intel-core-i7-8550u-processor-8m-cache-u...

So, what you are seeing is 100% normal and correct.

[SaifAliJoo]

oh i see !

so i brought 2666Mhz  without any reason..lol

i thought i7-8Gen Supports 2666mhz

Many people were suggesting me to overclock to get 2666mhz, but i don't know if its good for my notebook or not. can you tell me about it please?

to make it more clear for me, can you please tell me that will both RAMs work fine as one is 2400 and another is 2666?

and is their any way to increase the speed?

as my RAM is 24GB now, i see no big difference in Performance...lol (i do Video editing and Motion Graphic Animations)....

i 

[Paul_Tikkanen · Accepted solution]

Hi:

Yes, you are correct.  You bought 2666 MHz memory for no reason.

Not a big deal unless you paid more for it than you could have gotten a 2400 MHz chip for.

HP locks down the BIOS to prevent overclocking, which could result in damaging internal components, such as the processor, graphics and memory.  You could imagine the warranty issues that could result in overclocking a PC.

Your two memory chips will play together perfectly fine.

Since you use your notebook for video editing, it is the graphics that determines how well graphics intensive tasks such as video editing will perform.  Memory has little to do with it.

One thing though, is that an 8 GB + 16 GB memory is only running in the lower performing single data rate (SDR) mode.

For best memory performance you should install memory in matching capacities (2 x 8 GB, 2 x 16 GB), so that it runs in the higher performing dual data rate DDR) mode.

Watch this video...

https://www.youtube.com/watch?time_continue=1&v=E_aPaj5QkmM&feature=emb_logo

[SaifAliJoo]

Thanks alot  Paul!

one last thing 

as i had 8GB installed before now i have 24GB in combination, to clear out my confusion can you please tell me that do performance of my Notebook will get better with it or it's the same as it was on 8GB?

i am doubting it now 

[Paul_Tikkanen]

You're very welcome.

It has to be a little better.

W10 and other programs use a lot of memory.

Some folks will say that anything over 16 GB is a waste but, I disagree.

The more, the merrier.

If it were, me, I would be removing the 8 GB chip and putting a 16 GB memory chip in its place to get the max of 32 GB of memory and the higher performing DDR mode.

[SaifAliJoo]

Thank You so Much for your response and time.

Really appreciate that.😊

[Paul_Tikkanen]

Anytime.

Glad to have been of assistance.