Question Processor and memory questions

[Antal]

Hello. Forgive me immediately if the text is not accurate, English is not my native language.

I will get right to the point. I am currently selecting components for my new pc - for the first time. I started with a processor and bought an Intel i5-9600k. I started with the CPU and bought Intel i5-9600k. And then I started to choose the components, but I came across some questions that I would like to know the answers to.

1) The specification of my CPU says that it supports DDR4-266 memory. No matter how many articles I read, it is not specified anywhere whether my processor will work with 3000 Mhz memory. I know about the fact that the motherboard must be with a Z chipset.

From what I've read, I understand the following. In order for the processor to work with 3000 Mhz I have to set the XMP (ideally all processors support them) on the board, raise the FSB to the right frequencies. Is that right or something else? I'm also interested in how to convert FSB from Intel to more understandable units (Mhz, Gb/s) rather than "8 GT/s"?

1.1) This question is directly related to the first one, namely that the CPU supports memory bandwidth of only 41.6 Gb/s (this can be conventionally called frequency). I take it that I am increasing FSB - increasing the bandwidth?

2) It is also a question about limiting the CPU bandwidth. This means that without overclocking the FSB I can install - 2 modules 2666 in dual channel mode and get 41.6 Gb/s. The calculation is as follows: real frequency (1333) *2 (2 modules) * 2 (2 channels) * 8= 41.6 Gb/s. Is it true?

2.1) I have seen such questions on the forum, but I have not found a single answer. If I install 4 memory modules, will each of them take 50% of the channel? You mean 2 memory modules per channel? And so, if there is no overclocking, will I get the same frequency as with two cards, only more memory? In other words, I will not get any increase in computer performance?

I will clarify, I do not just want to know "yes or no", I want to understand these questions extensively. Thank you.

 

[Ralston18]

What motherboard do you have?

Start with the motherboard.

The motherboard's specs should list all supported components (CPU, iGPU, GPU, RAM, etc.) and to what extent those components are supported (overclocking, RAM slots, etc.) and how they must be configured.

You should also go to the motherboard's manufacturer's website to read the motherboard's User Guide/Manual. Often components are listed via a QVL (Qualified Vendors List).

Read everything - including notes and fine print. Most User Guides/Manuals will refer you back to the manufacturer's website for more information, updates, and details.

Motherboards are often revised and the Revision number on your motherboard is important to know. Also read the manufacturer's FAQs' and Forums.

No harm in reading a few other motherboard User Guides/Manuals. You will learn from what you read.

Keep notes, and plan out your build accordingly.

 

[Antal]

What motherboard do you have?

Start with the motherboard.

The motherboard's specs should list all supported components (CPU, iGPU, GPU, RAM, etc.) and to what extent those components are supported (overclocking, RAM slots, etc.) and how they must be configured.

You should also go to the motherboard's manufacturer's website to read the motherboard's User Guide/Manual. Often components are listed via a QVL (Qualified Vendors List).

Read everything - including notes and fine print. Most User Guides/Manuals will refer you back to the manufacturer's website for more information, updates, and details.

Motherboards are often revised and the Revision number on your motherboard is important to know. Also read the manufacturer's FAQs' and Forums.

No harm in reading a few other motherboard User Guides/Manuals. You will learn from what you read.

Keep notes, and plan out your build accordingly.

Thank you for the answer. I haven't bought any motherboard at the moment because I'm just studying the questions above, but I can say that it will be a 99% board with Asus Z390 chipset (which supports both CPU and memory overclocking). But if you want a specific example then let it be Asus PRIME Z390-A. It is very likely that I will buy this particular board.

About QVL I am also familiar with this concept and I can say that all the boards that I am considering support all my theoretical components and the CPU already bought.

I haven't read the manuals themselves (pdf files), but I have read a lot of board features and forums that you have suggested too, but not one of the above solutions doesn't answer my questions. Since the motherboard manufacturer will not explain the information about the processor and its connection to RAM, which I actually asked above.

Naturally, first of all, after purchasing the CPU, I studied the motherboards and already started to look at the capabilities of the Z390 chipset and RAM capabilities on Asus boards (in most cases they are much higher even than my theoretical requirements). That's why I didn't ask questions related to the motherboard, because I understand everything from them. At least for now

And that's why I think I asked specific questions about the CPU and RAM, or rather more about their connection.

 

[Ralston18]

Go back and do read the applicable component manuals (.pdf files).

For example: you can read what the motherboard's manufacturer claims and you can also read what the CPU manufacturer claims. Likewise for RAM, GPU, etc..

If the claims are in agreement then the components are likely compatible. However, any product is subject to changes and revisions that will may make a difference when the details are considered.

Such changes are often not clearly noted beyond some "*" or other fine print.

https://dlcdnets.asus.com/pub/ASUS/mb/LGA1151/PRIME_Z390-A/E15017_PRIME_Z390-A_UM_V2_WEB.pdf

[Note: Your English is fine so I chose the English version. You can change to another language if you so wish - may prove even more helpful if you do so and remove some uncertainties with regards to language and usage.]

The specifications summary begins on Page ix. Note the bold printed references.

Pages 1-4, 1-5, and 1-6 present CPU and RAM information in detail.

Print out selected pages so you can make notes as you verify components and plan your build.

The figures and diagrams can be very helpful with both assembly and configuration.

To help you understand more about overclocking:

https://forums.tomshardware.com/faq/cpu-overclocking-guide-and-tutorial-for-beginners.3347428/

 

[Antal]

Go back and do read the applicable component manuals (.pdf files).

For example: you can read what the motherboard's manufacturer claims and you can also read what the CPU manufacturer claims. Likewise for RAM, GPU, etc..

If the claims are in agreement then the components are likely compatible. However, any product is subject to changes and revisions that will may make a difference when the details are considered.

Such changes are often not clearly noted beyond some "*" or other fine print.

https://dlcdnets.asus.com/pub/ASUS/mb/LGA1151/PRIME_Z390-A/E15017_PRIME_Z390-A_UM_V2_WEB.pdf

[Note: Your English is fine so I chose the English version. You can change to another language if you so wish - may prove even more helpful if you do so and remove some uncertainties with regards to language and usage.]

The specifications summary begins on Page ix. Note the bold printed references.

Pages 1-4, 1-5, and 1-6 present CPU and RAM information in detail.

Print out selected pages so you can make notes as you verify components and plan your build.

The figures and diagrams can be very helpful with both assembly and configuration.

To help you understand more about overclocking:

https://forums.tomshardware.com/faq/cpu-overclocking-guide-and-tutorial-for-beginners.3347428/

Thank you for the article about overclocking and these pages, I read everything, but I never found the answers to my questions. In fact, apart from the overclocking on the specification, I knew everything.

Probably you have misunderstood me, and therefore I will paraphrase the question. I am not looking for an answer to whether the components are compatible. I am interested in the following. If you know, it will be great, I will ask questions one by one. I will start with this one:

In order to get more frequency on DDR4 memory, let's say 3000 Mhz (underline, provided that it and the motherboard support this feature), I need to enable the XMP profile. And here I have a question. The motherboard supports this option. But intel (my 9600K processor), counts all memory above 2666 Mhz as overclocking. Do I need to do any manipulations on my processor when I choose to use XMP with higher frequency (above 2666 Mhz)?

That is the first question. I ask it because the CPU specification says the maximum throughput is 41.6 Gb/s (2666 Mhz).

An additional question: if I'm not mistaken, increasing the RAM frequency will increase its bandwidth, but will it be useful if the processor still does not take more than 41.6 Gb/s?

 

[Ralston18]

Your questions are going beyond my comfort zone now.

Overall, a system can only be as fast as its' slowest component. I.e., that slowest component being a "bottleneck".

Plus I am also leery of running afoul of the details used to make performance claims with respect to overclocking claims and/or versus real world performance.

And part of reading the documentation means noting both what is said and what is "not said".

Moving your post to the Overclocking Forum.