Understanding Dual Channel Mode: RAM Memory Slot Colors & Configuration (A1, B1, A2, B2)

This is how I read the internet about dual chanel (wikipedia and other websites and forums) and a certain thing is not fully explained and I write it differently. He writes to put identical memories in the same colors, but this is not what he wants to ask.
Q1.
We have a motherboard, it has 4 slots: 2 red (A1, B1) and 2 yellow (A2, B2). As I mentioned earlier, they write differently, but I understand it so that two slots of different colors form one channel, i.e. there are generally two channels:
-channel A (A1-red slot, A2- yellow slot)
-channel B (B1-red slot, B2- yellow slot)
and for the memories to work in dual, you have to put one dice into each channel.


Do I understand correctly ??

Q2. If I understand question 1 correctly, question 2 is relevant.

It says on the CDs that in order for there to be a two-channel mode, the memory must be inserted into the slots of the same colors A1zB1 or A2zB2.
Since one channel has two slots, what difference do we put in the memory. In my opinion, A1 with B2 or A2 with B1 should also work in dual because there is one memory in each channel.

Q3 If we put in 3 memory dice (eg 2 memories channel A and 1 memory channel B) then we will not have dual but we will have the sum of all three memory dice. I understand well ??

What is your motherboard model?

I have a laptop. And I am asking about dual channel without any discs. I guess the dual channel rules are the same for every board.

golec2604 wrote:

I guess the dual channel rules are the same for every board.

Not!

https://pl.wikipedia.org/wiki/Dual_channel

After all, I said that I read Wikipedia. Forget a note about nForce2.

1 - it depends on the design of the board, the mood of the manufacturer and the sockets they just had in stock.
2 - it's not as simple as putting the bulbs in series. Even the length of the paths matters. The most important thing, however, is that each socket is connected to the controller. In summary, it is about the physical structure of the system.
3 - Sometimes you do not start the computer at all, sometimes it does not detect an odd bone, sometimes it detects 3 dice and turns on the SC, and sometimes it detects 3 dice and addresses it for mixed work - a pair of dice in DC and a single one in SC. Each option is possible - depends on the disc.

PS in your discussions, read more about single-sided and double-sided memories and the memory controller - its general architecture, the possibilities of location restrictions.
Because you are trying to reduce a very complicated topic to colorful slots ...

I don't mean the types of memory, but the dual channel principle. And the colors I used were random, they could be any different, because I saw them too. Only the principle of dual channel interests me.
I found something like that http://www.sajdyk.pl/2014/07/dwukanaowa-obsuga-pamieci-dual-channel.html

What exactly do you not understand from the links posted?

A colleague lives in a world where DualChanel is a parallel connection of memories taking place in a crude way and totally does not understand the complexity of the subject.
There is no universal method. It depends on the design of the motherboard, the type of controller and the memory used. It is a pity to write - we will not explain everything here and the author wants to get the answer on the plate.

Kasek21 wrote:

What exactly do you not understand from the links posted?

Well, after this http://www.sajdyk.pl/2014/07/dwukanaowa-obsuga-pamieci-dual-channel.html I understand artrykule as I wrote in the first post, so I provided this link.

Added after 6 [minutes]:

310artur wrote:

A colleague lives in a world where DualChanel is a parallel connection of memories taking place in a crude way and totally does not understand the complexity of the subject.
There is no universal method. It depends on the design of the motherboard, the type of controller and the memory used. It is a pity to write - we will not explain everything here and the author wants to get the answer on the plate.

A friend who knows everything has been found. I wonder if you know everything about memory. And I am not interested in everything only the basic principle of dual channel that I read about on Wikipedia, in this link I gave and from other forums, but there they have already written various things criticizing one another that he speaks badly. Wikipedia and this article pretty much describes it. And I wanted to make sure it was okay.

Ad1. It is different.
Ad2. See note 1
Ad3. There is something like "pseudodual" but as I wrote you have to read and it depends on the configuration.

Ad.1. Give at least 2 different examples.
(As I said, it is best described here http://www.sajdyk.pl/2014/07/dwukanaowa-obsuga-pamieci-dual-channel.html and this is what I suggested)

Well, what you do not understand in the statement - the principle of DualChanel operation is determined by the architecture of the motherboard, with particular emphasis on the RAM controller (this is either in the chipset or now always in the processor).
The principle of stacking memory is described in the instruction manual of each disc.

The only common denominator here is the idea

Quote:

Dual-channel technology uses two 64-bit channels, which together result in a 128-bit wide bus for data transfer between RAM and the memory controller

You insist that you are only interested in DC. It is as if you want to understand the principle of driving the wheels in a car without learning about the principle of engine and gearbox operation ... Then it comes down to what I quoted you from wikipedia.

It all depends on what example we give - practically each generation works on slightly different principles, except that we ALWAYS use a two-channel memory controller.

ftp://europe.asrock.com/Manual/K10N78.pdf page 19 disc view page 14.
Well, here is a different principle of arranging memory than I described and different than described in my previously quoted link.

But the main principle of Dual channel I can see is the same: we have two channels, each channel has 2 slots (there are 4 in total) and to work in dual you need to put in two the same memory dice, one per channel (in the manuals, write to the slots of this same color) or the same memory for all slots. And this is the principle I was thinking about all the time and that is why I asked if I understood correctly and gave one example.

I was not interested in colors and the principle of memory arrangement, because I can always find it in the manual.

Yes, to work in DUAL requires at least two RAM modules.

I don't understand all the time. What is your problem?

It's not about what my problem is. The point is, when I read about dual chanel on the intrnet, I understood it like this:
The main principle of dual channel: We have two channels for each channel, there are 2 slots (there are 4 in total) and to work in dual you need to put in two the same memory dice, one per channel (in the manual, write to the slots of the same color) or to all same memory slots.
And I asked you on the forum if I understood the basic principle correctly and gave you one possible example. If I understood it correctly, it was only enough to confirm it with a simple sentence: Yes, man, you understand well. And it would be after the topic.

Added after 2 [minutes]:

Kasek21 wrote:

to work in DUAL requires at least two RAM modules.

And by the way, I will not agree with this, because you did not get to how they were to be inserted.
You should write this:
to work in DUAL requires at least two RAM memory modules, one per channel.

golec2604 wrote:

I asked you on the forum if I understood the basic principle correctly and gave you one possible example. If I understood it correctly, it was enough to confirm it even with a simple sentence: Yes, man, you understand well. And it would be after the topic.

For you, the Lord, because I did not work on the land ;)

You can't answer that because ... Read on!

PS. It's not a school here; use google should be enough!

Or motherboard manual .......

golec2604 wrote:

Kasek21 wrote:

to work in DUAL requires at least two RAM modules.

And by the way, I will not agree with this, because you did not get to how they were to be inserted.
You should write this:
to work in DUAL requires at least two RAM memory modules, one per channel.

After all, he wrote well, you only mentioned how to place these two modules. Anyway, here it is easy to put two modules in slots of the same color and that's it (sometimes the manual describes which slots need to be used first). If you have a triple / quad channel, then in the manual you have a nice outline of the optimal arrangement of the modules in the slots depending on the number of modules.

Kasek21 wrote:

golec2604 wrote:

I asked you on the forum if I understood the basic principle correctly and gave you one possible example. If I understood it correctly, it was enough to confirm it even with a simple sentence: Yes, man, you understand well. And that would be the topic.

For you, the Lord, because I did not work on the land ;)

You can't answer that because ... Read on!

First of all, I see that you do not read with understanding and not only you, secondly, the word "peasant" did not apply to you but me, thirdly, the word "peasant" does not only mean a man from the village, fourthly, telling yourself to speak to the Lord is arrogant and to you that you have the manners of the size of your person.

Quote:

PS. It's not a school here; use google should be enough!

Secondly, I said [/ color] that I read on the net and here I just wanted to make sure.

golec2604 wrote:

Secondly, I was talking or reading on the internet and here I just wanted to make a deal.

Forgive me, you asked a question as simple and clear as the above quote And seriously, I still don't know what exactly was to be confirmed ...
The modules don't even have to be the same. Some controllers can map memory to work in mixed mode as you insert 2 and 4 GB modules, one per channel, into the associated banks. You are not interested in whether the module is one-sided or two-sided and it should be because it also affects the work in dual chanel ...

golec2604 wrote:

I was not interested in colors and the principle of memory arrangement because I will always find it in the manual.

So much for the topic - you will not understand the rest. In addition, read the instructions in English to in translations, sometimes someone is messing about channels with banks and water from the brain.

I corrected the post. for "or" was meant to be "that".

"you won't understand the rest" - and how can you know it? but never mind.

http://www.kuzniewski.pl/i23,lkieta-wolnych-bankow.html here, experts explain what a bank is.
https://pl.wikipedia.org/wiki/Bank_pami%C4%99ci or memory slots

Quote:

And seriously, I still don't know what exactly was to be confirmed ...

Am i writing in chinese ?? In the first post, I presented my understanding of the main principle of the duall channel that I read about on the internet. He wrote a lot of things and people wrote a lot of rubbish, especially on forums. I read all of this and two things seemed correct to me, i.e. wikipedia https://pl.wikipedia.org/wiki/Dual_channel this article http://www.sajdyk.pl/2014/07/dwukanaowa-obsuga-pamieci-dual-channel .html and the article found and read now https://techlipton.pl/test-ddr4-dual-channel-czy-single-channel/
After reading this, I developed some reasoning about it, described it on the forum on one example and wanted to find out from you if I understood what I read about.

In post 6, I wrote back to you clearly, and you ignored it or denied it.
As there are 4 slots, there are 2 banks per channel. There must be one dice per channel, but on some boards either 4 single-sided dice or 2 2-sided dice ... But the rest is not so obvious. One-color sockets for a pair of dice are still quite normal, if they are colorful at all. But the layout is really different. There are boards that have the same colors next to you. There are boards that you have symmetrically arranged banks on both sides of the CPU. Alternating stacking is not an option because the controller (which you are still negating), and the operation with 3 modules is a river topic.
So how to write back to you in one sentence? You understand a little well, but you simplify a little too much.

I already said that I know that there are many possibilities, but the question I asked in the first post I had to present on an example, it cannot be presented on all examples because there are plenty of them. The physical arrangement of the banks on the dice on the disc did not interest me either, because the manufacturer designs himself. The most popular are boards with two modules per channel and three are not a problem. At the very beginning, I was only interested (on the example of a CD from the Internet marked with the colors of banks) about the division of banks into channels and color coding or names to know which to work with.
I had two different thoughts. First, I thought that one channel is marked with one color, so when there was a pair of mods, if there was a dual channel, you had to plug it into two different colored sockets. Later, after reading something else, I came to a different conclusion that a given channel has two banks of different colors and in order for it to work dual, you need to put one dice into both banks, but in the same colors of the sockets. In addition, a certain manual for the motherboard confused me, and I read it in English, the markings were wrong in two places and I got a little water from my brain.


You see him writing. The first to connect to channel A, put the dice in places A1 and B1 and the second is the same in channel B, put in places A2 and B2. And it's badly spelled because we don't put two memory dice in
into one canal and one bone into two canals.
It should be written to connect the first way dual channel should be inserted into sockets A1 and B1 and in the second way to sockets A2 and B2. Yes she washed it off.
That's why I wanted to make sure what it was like here, that's why I asked a question.

Now I know that in most discs the same bank colors correspond to two channels and that there are two banks for each channel. But it is known that all bank colors can be the same, and it is enough to describe A1, A2, B1, B2 or similar to distinguish which bank corresponds to a given channel.
The end of the deliberation well lightened up.
================================================== ================================================== ============
I have other questions.
1. In most boards there are banks described in the following way: Channel A slots A1 and A2 channel B slots B1 and B2 and writes that the duals should be combined in: A1 with B1 and A2 with B2. Ok, that's what I write in the manual. And now I wonder if he writes this for the peace of mind for the drummer to make it easier for the fitter to insert the bone correctly without thinking how to insert it.
Because if I put one dice per canal, but in a different configuration, eg A1 with B2 or B1 with A2, there is also one dice per canal.
Does it have any meaning for the work of the computer or will I put in the A1 configuration with B1 / A2 with B2 or with the A1 configuration with B2 / B1 with A2 ??
Someone tested such a case ?? (well, I can't physically check)

2. I was looking for information on single-sided and double-sided bones, but no one gave the difference between them in operation, the only information was that the double-sided one has more memory than the one-sided one because it has memory chips on both sides. I found nothing else.

3.

Quote:

There are boards that you have symmetrically arranged banks on both sides of the CPU. Alternating stacking is not an option because the controller (which you are still negating)

This sentence seems endless to me, you must have thought more than written

Well, that unfinished sentence was supposed to push you towards the controller. If you mount it as you wrote A1 from B2 it will be rather a single chanel. The controller has 2 channels and 4 banks. A one-sided and two-sided module is something else for the controller. It has a different physical structure and therefore it is different is addressing . As I wrote to you that you will not understand it, it is not because I wanted to bother you or something - it just makes no sense to try to understand it because at this stage you have to analyze a specific example (controller, BIOS board). This addressing is where the key is. Something on the border between hardware and software. You have time and willingness to read it - I never wanted to think about it. After all, I will not design the motherboard anyway.
BTW, if I will clean the PC, I will check out of curiosity how the PC with A1 B2 memories will work so as to be sure

Well, I will also not design the albums and I do not have to think about it as it is physically and softly solved, because it may even be a secret of the manufacturer. I am only interested in the information that the assembler has when assembling the computer. I am not green in computers because I have assembled a lot of boxes but I never paid attention to it and it always worked. Now it interested me, but unfortunately I do not fold the boxes anymore because it is the age of laptops and I also got rid of the boxes from home, so I have no way to check it.

Quote:

If you mount it as you wrote A1 from B2 it will be rather a single chanel.

And why should there be a single, if there is one bone in two channels and the data will be two channels, whether you like it or not. If there were already a single, one of the dice should not be seen and only one would work. This is how it seems logically. I would like to check it too, but all of me have laptops.

And when it comes to single-sided and double-sided dice, it needs the information that the computer fitter needs. If it happened that I would fold a computer one day, I will not order a memory bag to try different configurations only as much as I need and I would like to know whether to take two-sided or one-sided, and do not refer me to the CD manual because I have already looked at a few manuals and nothing it writes about whether it is two-sided or one-sided.

Not for instructions, but go to QVL. You have checked memories on the list - they are marked with what and in what configurations they work. You buy exactly the best or as similar as possible in the absence of availability.

golec2604 wrote:

And why should it be single

Ask the designer / manufacturer of the MOBO.

This is the way it is and that's it.

golec2604 wrote:

And when it comes to single-sided and double-sided dice, it needs the information that the computer fitter needs.

Each MOBO manufacturer's website has tested modules and you can only be guided by it.

I never looked at QVL, the disc required DDR, I bought DDR like DDR2, I bought DDR2, etc. It always worked.
The only problems I encountered were identical memories, but different manufacturers did not work together separately, it was ok.

golec2604 wrote:

It always worked.

It doesn't always have to.