Question Can i pair 2400mhz CL15 with 2666 CL17?!

[Clydee]

Can someone help me with this please 🙏

I want to upgrade my laptop from 1x8 Gb to 2x8 Gb Ram

The maximum bandwidth support is 2400mhz.

So from HP it came with "1x8 GB 2666mhz CL17 17-17-17-39"

And I'm wondering if it's compatible with this "1x8 GB 2400mhz CL15 15-15-15-35" because it's the only 1x8 stick available at my local store.

 

[boju]

If it's got 1 8gb in it already it should be able to support two for dual channel.

What model is it? I doubt very much HP would install 2666 ram when system is limited to 2400 unless it's processor based support and they just chose to go 2666 all round.

 

[Clydee]

I will send you the model when i get home but yeah i checked it using CPU-Z .
The installed Ram is DDR4 SODIMM 2667(1333)mhz

 

[Clydee]

Here are the screenshots from CPUZ
https://ibb.co/gdG8TWz

IMG-20211215-WA0001 hosted at ImgBB

Image IMG-20211215-WA0001 hosted in ImgBB

ibb.co

 

[boju]

Can you share spd tab too please. Select slot memory is installed.

Search your laptop model and Crucial in google and they'll have listings of compatible memory you can get.

 

[Bob.B]

Can someone help me with this please 🙏

I want to upgrade my laptop from 1x8 Gb to 2x8 Gb Ram

The maximum bandwidth support is 2400mhz.

So from HP it came with "1x8 GB 2666mhz CL17 17-17-17-39"

And I'm wondering if it's compatible with this "1x8 GB 2400mhz CL15 15-15-15-35" because it's the only 1x8 stick available at my local store.

If your local store will take it back if it does not work try the ram.

 

[Clydee]

SPD tab
https://ibb.co/gdG8TWz

Thank you for your responses!

 

[boju]

CL 15 ram should work but no guarantees, if it works CL 15 will run at same timings as the slower module.

 

[Clydee]

Yeah i guess I will just give it a try,
Thank you for your time!

 

[boju]

No problem let us know how you go

 

[geofelt]

What does the cpu-Z memory tab show?
spd shows the ram specs.
memory tab shows what speed and settings is actually running.

Intel processors are quite tolerant of diverse ram.
They will reduce specs to match speed and cas numbers. to get the ram to run.
If your store has a return policy, give it a try.
No guarantee,

 

[boju]

Memory tab provided in post #4. Actually i didn't realise spd picture was also there and i asked for it again.

 

[Clydee]

My CPU is AMD Ryzen 7 3700U

I will let you know if it is going to work or not