Does not see the RAM in one slot. Windows does not see all the RAM. Using the integrated graphics card

Some users continue to ask why they have, for example, 8 GB of RAM, but the system sees only 4 GB, and maybe even less. The answer to the question is very simple - this happens only with 32-bit systems. Whether you have Windows XP, Windows 7 or the current "ten", but with a 32-bit architecture, it will not see more than 4 GB.

Even less available RAM can be seen when viewing system properties, why is this happening? The answer is simple, part of the so-called address space goes to servicing connected peripherals. The video card turned out to be the most consumer. Although some devices do not even use the RAM. The amount of address space depends on the chipset and other parameters, such as BIOS, computer configuration.

The system does not see part of the RAM

The only way to get rid of this problem is to reinstall the OS to the 64-bit version. Then more than 4 GB will be available to you.

There is also one feature of the system. Press Win + R and enter the command msconfig. Next, the System Configuration window opens. Go to the "Download" tab and click on the "Advanced options" button there.

Uncheck the item "Maximum Memory".

Solution number number 2

It happens that devices take part of the memory to the computer configuration, but not very much. Therefore, you should not worry about this.

Another option is to make sure which one is supported by the motherboard. But this applies more to older technologies.

You also need to enable the function in the BIOS Memory Remap Feature(also named: Memory Hole Remapping, H/W Mem Remap and H/W memory hole Remapping). After that, we install a 64-bit system. Sometimes these options are already enabled automatically on modern boards, so you can only make sure.

If you actually have less than 4 GB of RAM on a 64-bit system, then the Memory Remap Feature parameter must be disabled anyway. Not only can the available volume become even smaller because of this, but also some devices will freeze, which especially affects the modeling and gameplay.

It happens that the BIOS does not see the required amount of RAM, then it should be updated. This is a risky business and should be approached carefully and carefully. You can always find the update instructions on the official website of the motherboard.

More materials:

If the installed modules are detected in the BIOS, but not in Windows, then you should check the manual for the motherboard. It usually says about connecting specific RAM modules, for example, which mode is better - single-channel or dual-channel. On the official website, you can find out about the models that may suit you and the connection option.

If the system does not see the RAM, then this may be due to an incorrectly set power value, as well as due to faulty modules. Moreover, if one of the bars fails, then the system may not start at all, then you need to get rid of it.

Summing up

So, we figured out why the computer does not see the RAM, as well as some specific amount of it. I’ll write down the points on what needs to be done if this happens:

1. Reinstall OS to 64-bit version;
2. In the System Configuration, uncheck the box "Maximum memory";
3. Check the maximum amount of RAM on the motherboard;
4. Check the health of the RAM modules;
5. Rearrange the RAM sticks in places;
6. - instructions on the official websites of motherboards;

You can also clean your computer from dust and dirt. Wipe the contacts on the RAM modules, and clean the slots. Hope this article helps you!

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RAM becomes the cause of many troubles in the computer. For example, its quantity is one of the key factors that determine the possibility and stability of games and various programs. Over time, a small amount of RAM leads to the fact that we need to change or add additional modules.

But what if the computer does not see the RAM?

Such problems happen with both the main and add-on boards. In fact, there can be a huge number of reasons for this, and we will talk about them today.

RAM and operating system

It is important to know that in terms of capacity, operating Windows systems are divided into two main types.

As a rule, 32-bit Windows OS is installed on most of our computers.

This is the first reason why the computer does not see the RAM. We draw your attention to the fact that software This type is designed to work with RAM, with a total volume of about 4 GB. The OS simply does not notice the rest of the memory, regardless of how many modules are installed on the PC and what their total volume is.

The solution to this problem is to install a 64-bit version of Windows if the PC processor can work with it (which most modern chips are capable of).

You can get information about the OS version in two main ways:

If you have a 64-bit OS installed, and the computer still does not see the RAM, then the reason lies in a different plane.

Limiting the amount of RAM by the operating system

When developing Windows operating systems, Microsoft provided for certain limits of RAM that can be used by a particular OS. Let's consider the values ​​using the example of various versions of Windows 7. Let's make a reservation right away that 64-bit versions are considered (with the exception of "Win 7 Initial", where there is none).

• Initial - 2 GB;
• Home Basic - 8 GB;
• Home Extended - 16 GB;
• Professional - 192 GB;
• Corporate - 192 GB;
• Maximum - 192 GB;

A similar picture is observed in Win 8, although the thresholds are much higher there.

• Basic - 128 GB;
• Corporate - 512 GB;
• Professional - 512 GB.

Such limitations are quite normal, since cheaper versions of software always have more modest potential.

Therefore, if your computer does not see the RAM, be sure to check the version of your OS.

Memory consumption for components

Almost every part of the computer requires a certain amount of RAM to work correctly. In particular, the integrated graphics card always uses it, unless the PC uses its discrete alternative. And there are a lot of such PC components, each of which selects at least a small piece of RAM for itself.

You can check this guess through the "System" menu in the control panel.

It specifies two values ​​of the RAM:

1. Total (first digit);
2. Available (number in brackets).

In this case, it will not be difficult to calculate the RAM consumption. A simple mathematical operation with the subtraction of the available value from the total. The difference between them is the actual consumption internal devices PC and system.

Motherboard size limitation

Not only the operating system can limit the amount of RAM, but also one of the components from which users least expect such a catch - the motherboard. It can have up to six slots for installing cards, but there is no guarantee that they will all work at once.

In this case, the same principle applies as the OS. The functionality of cheaper components is limited to sales of expensive products.

If your computer does not see the RAM, but the software can work with the installed amount, you need to go into the BIOS of the motherboard and see if there is a limit. As a rule, you can see information about the available RAM immediately after entering this menu.

If the BIOS displays the installed amount of RAM, but the OS still does not see it, then the problem lies somewhere in the software plane.

Incorrect RAM installation

Despite the apparent ease of installation, the RAM module can also be installed incorrectly. If the amount of RAM is not displayed either in the OS or in the BIOS, then the problem lies directly in the board. In this case, you need to carefully disassemble the PC and check the correct installation of the device.

Updated: 06/17/2019 Published: 15.06.2018

Description

The system detects less RAM than is installed in the computer.

Or not all memory is available to the system:

Also, not all of its volume may be determined in the BIOS (more often, only half).

Cause

1. Part of the memory is taken by the built-in video card.
2. The edition or bit depth limit of the operating system.
3. software limitation.
4. System memory reservation.
5. RAM failure.
6. Processor limitation.
7. BIOS error or the need to update it.
8. The maximum volume limit that the motherboard supports.
9. The motherboard does not support one of the memory modules.

Decision

1. Using the built-in graphics card

This problem is characterized by a slight allocation of memory for the operation of the video adapter. In this case, we will observe a slight decrease in available memory, for example:

If we want the integrated video card to consume less memory, we go into BIOS / UEFI and find one of the parameters:

• Share Memory Size
• Onboard VGA Frame Buffer
• Display Cache Window Size
• On-Chip Video Window Size
• Onboard Video Memory Size
• Internal Graphic Mode Select
• Integrated Graphics Share Memory

* in different BIOS versions, they may be called differently. It is also possible that other parameters can be used - in this case, you need to study the documentation for the motherboard or use a search engine.

After we change the amount of memory reservation for the necessary video systems:

2. Operating system limits

Different editions of the Windows system have a limit on the maximum amount of memory used.

a) All 32-bit versions can use a maximum of 3.25 GB of RAM. This architectural limitation is the limit that a 32-bit system is capable of. The picture will look something like this:

To use more than 3 GB of memory, you need to reinstall the system to the 64-bit version.

b) Windows editions also have limitations. For example, Windows 10 Home 64 bit will allow you to use 128 GB, and Windows 10 Pro x64 - 512 GB. With Windows 7, the situation is worse - the home basic edition will allow you to use only 8 GB, and the initial one, only 2 GB.

More details in the tables:

If our problem is related to the edition limit, we need to update the system or reinstall it.

3. Software limitation

The limit can be set in the system. To remove it, open a command prompt and enter the command msconfig- the "System Configuration" window will open (you can also use the Windows search by the name of the window).

In the window that opens, go to the tab and click on Extra options:

Verify that the checkbox is not checked. Maximum Memory:

4. Setting up the basic I/O system

In order for the computer to use all the memory, in some cases, BIOS / UEFI settings may be required:

5. Problem with BIOS / UEFI

Since BIOS / UEFI is responsible for collecting information about the computer, the problem may occur on initial stage turning on the PC.

First, let's try to reset the settings. To do this, disconnect the computer from the power source and pull out the battery for 20 minutes (the first time you can try, for 10 seconds). If this does not help, update the BIOS.

6. The maximum volume that the motherboard supports

It is necessary to check what is the maximum volume that the motherboard itself can see. To do this, you should use the instructions - it comes with the kit, and it can also be downloaded from the manufacturer's website. Also, similar information can be found on some online stores:

7. Swapping memory modules

Sometimes, swapping memory modules in sets helps. We just disassemble the computer, pull out the modules and swap them.

If there are free memory slots, you can try to use them. It is necessary to use connectors of the same color.

8. Memory module failure

In the event of a memory failure, the system and BIOS will not display its entire volume (usually only half). For example, if 16 GB (2 sticks of 8 GB each) are inserted into the computer, we will see only 8.

In this case, you can try to pull out and insert the memory sticks back (you can blow them a little from dust). Also, the boards can be swapped. You can also try cleaning the contacts (a regular eraser will do). Some laptops or monoblocks have a separate plug, opening which you can get to the memory modules, otherwise you need to disassemble the computer completely.

If this does not help, perform a memory test. In the case when the test also shows part of the memory, we try to pull out both bars and insert them one at a time - if the computer does not turn on with one of them, this faulty bar must be replaced, if the computer starts up with all the bars, we may be dealing with a problem BIOS (step below).

9. Processor Limitations

Each processor has its own limit on supporting the maximum amount of RAM. You need to go to the official website of the developer and check the maximum volume supported by our processor.

10. Module support from motherboard side

If the memory was purchased in addition, and it differs from the second bracket, you need to make sure that the motherboard supports the new module.

This can be done on the official website of the motherboard manufacturer - go to the support section and find the compatibility sheet. Among the list of equipment, you need to find the purchased memory.

11. Cleaning modules with an eraser

If the problem appeared by itself, you can try to pull the memory modules out of the motherboard and clean their contacts with an eraser. After we blow through the connectors on the motherboard and insert the memory into place.

12. Installing the chipset driver

Updating or reinstalling the driver may also help resolve the issue. To do this, we determine the manufacturer and model of the motherboard, go to the manufacturer's website, find the page for a specific model and download the driver for the chipset. Install the downloaded driver and restart the computer.

Also, the driver can be installed in semi-automatic mode using the DriverHub program.

13. Adjusting timings

If brackets with different timings are installed in the computer, the memory controller automatically adjusts the necessary parameters, as a rule, focusing on the indicators of the slowest of them. But it happens that the controller cannot find the optimal settings. This leads to the fact that one of the modules does not work correctly and its memory capacity is not used.

To set the timings, go to BIOS / UEFI and find the memory settings option. Depending on the availability of the firmware type, version and manufacturer, these settings may vary greatly. You need to find the instructions for the BIOS / UEFI version used to change the timings and set those that correspond to the slowest memory module.

14. Windows License Restriction

The systems that come with computers have a strict licensing policy that restricts hardware replacements. This can lead to a situation where, when adding memory, it will not be recognized all.

In this case, you need to reinstall the system. In this case, a simple reinstallation over the existing system will not help - only a complete formatting of the system partition with the installation of a new Windows.

It often happens that the computer does not see the RAM. Read the troubleshooting article.

One of the popular ways to upgrade a PC or laptop is to increase the amount of RAM. But it often happens that new memory bars are installed, and the OS shows that there is not enough memory or it is not available. In this article, we will analyze why this happens and what needs to be done to fix the problem.

What to do if the computer, laptop does not see the RAM?

If you open the properties of your computer and instead of the installed ones, for example, 8 GB, the system sees only 4 GB, then it is worth understanding in detail what the problem is. So, what to do if the computer, laptop does not see the RAM? Reasons and tips:

Explore the bitness of the OS:

• Open the system properties and look at its bit depth.
• A 32-bit system has a 4 GB limit, and even if you install 8 GB or 16 GB, the PC will still not see them.
• Now IT specialists can get around this problem, but it is difficult and does not always work.
• In the end, you will have to come to terms with what is available or reinstall the OS to 64-bit.

RAM limit indicators for your Windows:

• All versions of the Windows OS have their own maximum allowable RAM limit with which the system can function normally.
• If you install more RAM, the system will not see it and may even “bug out”.

Motherboard limitations:

• Any motherboard can only accept a certain amount of gigabytes of RAM.
• Techniques that were released 5 years ago and earlier are considered obsolete models and are only able to see 4 GB of memory. Newer models are 16 GB, and there are now super-modern models that function smoothly with 32 GB or more.
• You can see the capabilities of your PC on the official resource of the manufacturer.
• Pay attention to the frequency that the motherboard unit supports.

Check for restrictive capabilities when booting the OS:

• Such restrictions can be in any operating system, and they are set on its boot. Because of this, part of the OS may be inaccessible.
• To check these limits, simultaneously press "Win" + "R". In the line that appears, type "msconfig".
and "Extra options".
• Uncheck the box in the new window "Maximum Memory".
• Then click "OK" and restart your PC.

Check if the RAM is working:

• If the RAM has lost its normal functionality, then the computer does not see the available amount of RAM.
• First, turn off the equipment from the network. Take out the planks.
• They can be checked one by one, for example, on another device - a laptop or computer, or on the same PC on which they were installed. Insert each block of RAM into the same port one by one and check if the PC sees it or not.

Rearrange blocks of RAM:

• If your PC has a dual-channel mode of functioning of RAM blocks, then you need to use RAM of the same brand, the same size and model.
• It is also acceptable to use different brands, but you have to change the connectors by experimenting with them: connect the blocks and look at the sequence in which your PC sees the RAM.

Update BIOS:

• In most cases, a new installed BIOS version helps to solve all problems.
• Therefore, pay attention to which BIOS version is used on your PC.
• This can be done when the computer is turned on. But the data appears literally for a couple of seconds. Therefore, when turning on the PC, press the key Pause/Break and study the information in detail.

Do a BIOS reset:

• When the computer does not see the required amount of memory, reset the BIOS settings to the original ones.
• Click tab "Exit" in BIOS. A window will appear in which click on .
• You can get the battery on the motherboard for a couple of seconds, and then put it back in place. This will also solve the problem.

Clean the sticks and RAM ports from dust:

• First, disconnect your computer from the network.
• Remove the processor from its socket, and remove dust and dirt.
• Also check if all the legs are in place, if they are bent. This may also be the cause of the problem.

If you cannot solve the problem yourself, then contact service center, to specialists in IT-technologies.

Video: The computer does not see all the RAM? It's decided.

In theory, installing RAM memory consists in inserting memory cards into the appropriate slots on the computer's motherboard and turning it on. In fact, various problems often occur in which Windows does not see the RAM. These problems can be caused by both hardware and program issues. In this article, we will look at the most common causes, causing a situation where Windows 7 or Windows 8 does not see the entire amount of RAM.

You are using a 32 bit version of Windows 7 or Windows 8

The maximum amount of RAM that 32-bit versions of Windows can "see" is 4 GB. Thus, if you have more RAM, you should install the 64-bit version to take advantage of this memory. In order to find out which Windows version installed on your computer, open the "System" item in the control panel (or right-click on "My Computer" and select "Properties").

In the "System type" item, information about the bitness of your version of Windows will be displayed. However, not only the bitness of the system can affect the amount of available RAM in Windows.

Your version of Windows has a maximum memory limit

In addition to the bitness of the operating system, the amount of visible memory is also affected by which edition of Windows you are using. For example, if your computer is running Windows 7 Home, then the maximum available RAM is 2GB, not 4. Users of Windows 7 Home Basic have only 8GB of RAM available, even if they are running a 64-bit version of the OS . There are similar limits for latest version- Windows 8.

Maximum available RAM in Windows 8

Memory is allocated for the operation of the integrated video card or other equipment

Various computer hardware can use some of the system RAM for their work. The most common option is the use of RAM by integrated video controllers (integrated video card). But this is not the only option when the hardware uses RAM.

You can see the amount of RAM used by the built-in video card and other computer hardware in the same System window. In case they are allocated memory, then you will see two values ​​- installed RAM and available for use, which will be displayed in brackets. Accordingly, the difference between them is the size of the RAM that the devices took for themselves.

The motherboard has a limit on the amount of memory

Motherboards also have limits on available RAM. Just because all the memory modules fit into the slots doesn't mean that the motherboard is capable of handling all that memory.

To find out if the motherboard sees the memory, go to Computer BIOS. To do this, immediately after turning on the PC and before the operating system starts loading, press the appropriate button for this, information about it is usually on the screen (Usually, this is F2 or Delete). In most BIOS versions, you will see information about the installed memory already on the first screen.

If all the memory is visible in the BIOS, but not in Windows, then we are looking for a problem in Windows. If the memory is not displayed in the BIOS, then you should look for a problem at a lower level than the operating system. To get started, you should familiarize yourself with the specifications of the motherboard (for example, find it on the Internet).

Incorrectly installed memory

If you are sure that the motherboard supports the entire amount of installed memory, but it still does not appear in the BIOS, it makes sense to check if you inserted it correctly.

Turn off the power of the computer, open it, it is better if it is grounded. Remove the memory sticks and put them back in carefully, making sure the memory is seated correctly. You can also clean the RAM contacts using a hard eraser.

In some cases, for proper operation of RAM, you need to install it in specific slots - in this case, look for information in the instructions for the computer motherboard.

Another way to diagnose a problem memory module is to remove them one at a time, then turn on the computer and look at the amount of available memory.

Problems with the RAM itself

If you're having any memory issues, it might be the cause itself. You can use a RAM testing utility such as memtest86 or you can use Windows' built-in memory diagnostic utility. You can also recommend testing the memory sticks one by one by installing them into the computer - this way it will be possible to more accurately determine the failed module.

I hope this article possible reasons for which the computer does not see the memory will help you solve the problem.