New RAM in wrong clock frequenz/no docp/oc

[braga159]

Hi,

since my Notebook got only 16GB (5600Mhz, CL45) of RAM and I need a lot and fast RAM for my purposes, I decided to buy 6400Mhz 32GB of RAM [KF564S38IBK2-32]. After installing and starting up I noticed, its only running at  4800Mhz CL42.

First Column ist the current clock frequenz / latencies. 

Is there a way to choose a certain xmp profile (even if its ryzen) or set the combinations manually? Something like advanced bios options or a bios update which allows adjustments like this? It would be happy if I got at least the 5600Mhz like before.

Biosversion is F.12

[Jupitero]

Hello.

First: your laptop officially supports only 32GB memory with 2x 16GB memory modules. If your 32GB memory module does work and you now have 48GB of memory - congrats!

HP doesn't allow selecting the XMP profile. I recommend returning the memory module and selecting another module. HP has a validated 5600MHz 16GB memory module available for your system, part number N38627-001. Faster memory modules will provide zero benefits since your laptop only works at 5600MHz and HP computers cannot be overclocked.

You can still go with 3rd party memory modules. Kingston has memory modules for your specific laptop model: https://www.kingston.com/en/memory/search/model/108266/hp-hpe-victus-laptop-16-s0xxx-16t-s0xxx-serie...

This question has been answered comprehensively before on these HP boards:

https://h30434.www3.hp.com/t5/Desktop-Hardware-and-Upgrade-Questions/cannot-find-XMP-settings/td-p/8...

Edit:

Your laptop memory works fastest when both memory slots are equipped with equal size memory modules, because the system will then enables Dual Channel memory access which further enhances the memory throughput. If the memory modules have different CAS Latency settings, the computer will slow down the faster memory to the slower module level, negating the latency advantages on the faster module.

[TzortzisG]

Hi!

First: We don't know what these machines can support RAM-wise. If not mistaken, their CPUs can go up to 256GB of RAM. Unfortunately, HP DDR5 machines haven't been thoroughly tested yet. We DO know however that this victus series has been tested and sold with 64GB RAM. The manuals are not religious scripts. They outline how the company HP plans to upgrade their machines. Many times they are way off......

braga159, I think that you knew from the very start of your question that there was no way to enable these kinds of settings on a Ryzen laptop. Why did you choose this particular module, the KF564S38IBK2-32? If you take a careful look at the pdf Kingston has for this module, you will see that it's designed to plug-n-play (Jedec) at this very low speed setting. The KF556S40IB-32 module is the one you should have gone for. The pdf describes how it will default to 5600 speed and 40 latency. If you had used Kingston 's page to choose your gaming RAM, it would have directly taken you to this module. Can you return it and get the correct one?

Second: Although you can't overclock HP laptops' RAM, faster modules based on lower latencies actually give you excellent performance. For example, a DDR4 2400 module with a cl14 (hyperx impact) will outperform stock 3200 cl22 RAM. If you are able to find the 5600-cl40 modules, and they actually work on your system, they will run faster than normal 5600 RAM. However, there's a catch. HP laptops don't like low latencies. Not even gaming laptops. This is why most of us have learned to steer clear. But if one is willing to risk getting something that might make the laptop unbootable or prone to BSODs, gaming RAM is actually faster -and does not have "zero benefits"..........

[Jupitero]

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First: We don't know what these machines can support RAM-wise. If not mistaken, their CPUs can go up to 256GB of RAM. Unfortunately, HP DDR5 machines haven't been thoroughly tested yet. We DO know however that this victus series has been tested and sold with 64GB RAM. The manuals are not religious scripts. They outline how the company HP plans to upgrade their machines. Many times they are way off......

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The manuals show that 16GB is the highest validated module size for this laptop, and I am personally not going to advise users to upgrade into the unknown territory.

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Second: Although you can't overclock HP laptops' RAM, faster modules based on lower latencies actually give you excellent performance. For example, a DDR4 2400 module with a cl14 (hyperx impact) will outperform stock 3200 cl22 RAM.

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You are wrong. Slower memory with lower CAS may be faster on some platforms but on AMD Ryzen platforms the internal Infinity Fabric speed is directly tied to the RAM speed. And this is a Ryzen computer in this case.

[TzortzisG]

Fair enough about the first part.

About the second part we are only talking about RAM modules with equal speed and different timings. If you know that these will perform the same on AMD systems.....then I have to agree that your knowledge surpasses mine.