Date of publication: 18.05.2015

In this article, I will go into detail on how to diagnose memory problems. We will also figure out how to fix and replace RAM on the example of a PC, laptop, and on examples of Windows and Linux.

I will try to describe everything in detail and clearly. Therefore, beginners will be able to figure it out, and experienced users will find something interesting for themselves.

Terms:
RAM is the official name for random access memory.
RAM bar - a microcircuit, which is a random access memory.

How RAM can go bad

Random access memory is a microcircuit inserted into a special slot in your computer or laptop. Naturally, there is more RAM in a computer, and less in a laptop. The RAM strip is the most reliable piece of hardware in your computer or laptop. According to statistics, they are the least likely to break, and therefore the warranty period for them is longer (on average - 4 years).

This is due to the simplicity of the microcircuit. It practically does not heat up, and therefore does not need a cooler (fan). In rare cases, a radiator is put on the operating room for cooling, but this is usually found on powerful gaming computers. In addition, the heatsink makes the RAM bar structurally stronger.

RAM can only be physically damaged. Those. not a single virus or software problem has yet been able to corrupt the RAM. Therefore, the causes of the problem are most often:

1) Manufacturing defects.
2) Problems with the power supply.
3) Mechanical damage to the RAM strip or connectors.
4) Static stress.
5) Simple wear and tear.
6) Overheating / hypothermia.

Manufacturing defect is rare. In 1% of cases, and this does not greatly depend on the manufacturer. This is due to the fact that all microcircuits are checked by the manufacturer. In addition, the warranty period for RAM is long. Therefore, it is enough just to go to the service center and change the RAM bar under warranty.

Power supply problems are rare. There are controllers in the power supplies and in the mother memory that do not allow them to supply a voltage higher than expected. However, there are times when it is a voltage failure that spoils the RAM. Unfortunately, this can only be checked with a voltmeter, which most people do not have at home (but in vain). If the problem is in the power supply, then you will have to replace it too.

Mechanical damage - the most common case. This usually happens when you try to force the RAM stick in. Sometimes it is not the microcircuit itself that is damaged, but the connector.

Static stress is extremely rare. In my practice, I have never encountered this. The computer system unit and laptop case are always closed, and therefore static voltage is excluded. In addition, modern devices have an antistatic mesh under the motherboard. However, static electricity can be a threat. For example, if you walk on the carpet in rubber slippers, and then climb your hands into the "insides" of the computer.

Simple wear happens over time. Nothing in this world lasts forever. The RAM bar can deteriorate both after 4 years and after 15 years. It all depends on the operating conditions and the manufacturer.

Overheating or hypothermia can ruin your RAM too. But this happens rarely, since absolutely exorbitant temperatures (+ 100C, -45C) are required to ruin the microcircuit. Clean your computer and laptop from dust and everything will be fine.

How to fix corrupted RAM

No way. If the RAM bar is damaged, then it is almost impossible to fix it. If the matter is in the connector or worn out contacts, then you can do something else. However, the microcircuit itself cannot be repaired in any way, it can only be replaced. Fortunately, they are inexpensive. 2GB at 1600Hz cost around 1,500 rubles, which is very little considering the warranty period. Just try not to buy RAM with less than two years warranty.

However, don't be intimidated. Problems can be solved.

What signs indicate a defect in RAM

Common signs:
1) The system does not start. Or it starts to reboot itself endlessly, trying to start normally.
2) The system does not start at all. Usually accompanied by beeping. This means that the RAM was not detected at all. This means either a very severe damage to the RAM strip, or damage to the connector.

Windows:
1) Blue screen of death crashes. Blue screen with technical information. The error code is most often different. That is, it makes no sense to google the error, because the codes are always different and always show a different reason. Sometimes this happens due to the fact that the RAM bar is not fully inserted.
2) System malfunctions. This is usually associated with programs and games that use RAM heavily. A vivid example: programs, browser and games crash with a system error. Sometimes accompanied by a crash into a blue screen.

Linux:
1) System malfunctions and program crashes. Sometimes it's funny. You go to the browser, it crashes with an error, you try to view the error report, but it also crashes with a system error. Even if you look at the logs, it is still not always immediately clear what the problem is. It is typical for all debian-derived distributions.
2) The system does not boot. Crashes to the console or writes an error. Although it may be for some who use Arch or LFS, it is intended :)

How to check RAM for defects

The easiest way to check the RAM is to download and install the special utility Memtest86 on a USB flash drive or CD (does anyone else use them ?!).

There is Memtest86, and there is Memtest86 +. The difference between them is small, so you can download any on the official website: www.memtest.org

This archive contains an automatic installer for a USB flash drive. Those. insert a USB flash drive, launch the program and follow simple instructions. Then you insert this flash drive into your computer or laptop, boot from it and check the RAM.

If you are on Linux, Memtest86 comes bundled with images for Debian, Ubuntu, Fedora and a few others. And also the utility can be launched from the grub menu at startup. If you don't know what grub is, then it's too early for you to start Linux :)

But! Before running the program from a USB flash drive, you need to do the following.

Step 1.
First you need to find the microcircuit. This is easy to do. The RAM looks like a rectangular microcircuit. It is longer for a computer and shorter for a laptop.

The microcircuit is clamped on the sides (tautology, yes). The clamps are easy to open, and then pull out the RAM bar. But before pulling out the microcircuit ...

Step 2.
Reset BIOS settings. When the system starts, press Del and the BIOS menu comes out. Select the Set to Default option (by default F9 or F10). Then save and reboot.
This step is not required, but the hardware repair philosophy suggests this step. In some cases, resetting the settings helps the system to work.

Step 3.
Pull out the RAM chip and look at its condition. If the contacts are dirty, take an eraser and gently wipe them along.

Step 4.
If you have one bar, then put it in the connector and run Memtest from the flash drive. If you have several RAM chips, then leave one and take out the rest.

Step 5.
By running Memtest, it will immediately start checking the RAM. It looks like this:

In the image, I marked the program zones with color.
Green - the characteristics of your processor (CPU).
Purple - stage of verification and percentage of verification.
Yellow - the model and characteristics of your RAM. Remember them or write them down, because if you want to buy a new RAM strip, you will rely on these characteristics.

If the program detects errors, it will mark them in red. Even one mistake is already a reason to replace the RAM.

Step 6.
After checking, turn off your computer or laptop. Then pull out the RAM again and insert it into another slot. Run Memtest again.
If errors appear again, then you need to replace the RAM bar, because it can't be fixed anymore.
If no errors appear, then the point is in the connector.

If you have multiple RAM chips, check each one in turn. If the matter is in the connector, then simply do not use it, or take it to the service - to fix it.

Solution of problems

If Memtest gives red errors, then your RAM can no longer be cured. Buy a new one.

Of course, if there are not many errors, then you can continue to work with this RAM bar. But as soon as some program stumbles upon a damaged sector, glitches and crashes will begin. If you use Linux and can compile the kernel yourself, then relying on the data from Memtest86, you can build a system that would not use the specified areas of memory, avoiding errors.

However, remember! If Memtest86 has detected errors in memory, then the wear process has already started. This means that over time, there will be more errors until the RAM is completely damaged.

Replacing the RAM is simple. You pull out the damaged microcircuit and carefully insert the new one. In laptops, the RAM bar is inserted and pulled out at an upward angle. Those. you insert the RAM diagonally, and then click on it from the top until it clicks. And if you squeeze the limiters, the microcircuit itself will "jump" up.

If you have a laptop with non-working RAM, then it is better to take it with you to the store right away. There you can ask the consultant to install the RAM in your laptop yourself, if you yourself are afraid. In addition, you can immediately test the operation of the new memory strip by taking with you a flash drive with Memtest86 +.

conclusions

If you do not understand something or have any questions, then leave them in the comments to this article.

But, in general, testing and replacing RAM is not so difficult. It's just that ignorance scares away, and therefore the main thing is to cope with fear. After all, computers and laptops are arranged as logically and simply as possible, surprisingly.

Latest Computers & Internet Tips:

Board comments:

Laptop, simple games, online games, browsers, etc. at startup, the laptop hangs on dead and does not respond to any commands other than turn off, what is the reason?

Hello. This morning, turning on the computer, it beeps long and repetitively. Is it RAM? thanks

When I start the computer, the blue screen "Eror: 0x0000007E" crashes, I think this is a problem with the RAM, although I installed it half a year ago

Hello, at startup it beeps 3 times .. All the contacts are believed, the video card is working .. RAM planes 2, included one at a time and changed the slots ... Before that, it started normally without problems .. What could be the problem, the screen does not react in any way ..

Hello, the child filled the laptop with liquid soap bubbles, after drying, knocks out a black screen where he writes phoenix bios 4.0 release 6.1 copyright 1985-2007 phoenix technologies Ltd all Rights reserved model name extensa 5635 z bios version vo.3216 build time 06.09.09. 18.36 cpu \u003d 1 processors detected, cores per processors \u003d 2 pentium dual core cpu 30006M system ram passed 1024 KB L2 Cache System Bios Shadowed video bios shadowed fixed disk 0 ATAPI CD ROM Mouse initialized ERROR 0200 failure Fixed disk 0, press f 1 to resume f2 setup

Hello, I have such a problem sitting playing in a laptop, he was without a battery and accidentally pulled out the power cord from the socket, it turned off and does not turn on, the Caps lock key flashes three times this is a malfunction of the memory module I replaced the RAM but there is no sense all the same tell me what to do ?? ? Many thanks!!!

The second RAM slot in the lenovo g505 laptop does not work, I insert the RAM, I turn on the laptop, the laptop turns on the black screen, what is the problem, explain who knows

The text is quite tolerable, only the RAM bar itself is not a microcircuit, but a circuit (or board), and the microcircuits are those square black things on it.

Good day. I have such a problem: Nout Toshiba - when you start games after a while (10-30 minutes. It happens even more) the system just gets up and does not react to anything. The same problem when you watch movies online. Tell me what could be the reason

Dude, you are awesome, helped out

Good afternoon! This question is ripe. I have 4 bars for DDR2, 2 for 1 gig, 2 for 2 gigs, despite the fact that one manufacturer and one frequency. if you put them separately (2 to 2/2 to 1), everything plows, but only on the yellow mother slots. and when installed in different slots or installing 4 strips, some kind of failure occurs at once, the system engineer beeps incessantly and does not load the system. What to do?

Thanks for the answer, just a situation arose, we are doing repairs, people came two months later and claim that we allegedly changed the RAM) so I'm trying to figure out what and what))))) the laptop was flooded))

Paul, no, this is hardly possible. The volume cannot change that way, even if the sectors are damaged. It is quite possible that your equipment reserves part of the memory. Go to Task Manager - Resource Monitor, and see how much is reserved by the hardware.

Hello, such a question, can the RAM partially fail and show 1 gig instead of 4 gigs, for example, is it possible at all ???

Hello! Please tell me, my RAM is working properly, as it was tested on other PCs (intel), but when I insert into my PC (intel) I have a black screen and one long squeak repeating, which indicates a RAM malfunction. I put the dice one at a time and different slots, the same 1 long squeak. Also on the motherboard there are 2 swollen capacitors near the processor socket above it and on the left, can this be the cause of the malfunction? Or is it the RAM slots? I hope I explained it clearly! Thanks in advance!

Both from the same manufacturer, with the same clock frequency and timings, in general, are practically brothers. If both modules are installed, the available amount of RAM is determined correctly both in the BIOS of the motherboard and in Windows itself, however, in most cases, an attempt to start the OS ends with a reboot or a "blue screen".

I tried various options for loading Windows, but this did not lead to anything good. The strangest thing is that both memory bars have been “friends” for more than three years, and then suddenly, for no apparent reason, they stopped. Alone, they work perfectly, that is, marriage or breakdown of one of the modules is excluded.

There is a feeling that the controller responsible for the operation of the RAM began to behave strangely, but I did not notice any smoke, overheating or crackling. So what is the reason for these problems? The last time I just removed and cleaned the CPU cooler, I did not remove the RAM from the connectors. Maybe you faced such problems?

Computer configuration: processor - Intel Pentium 4 (2400 MHz), motherboard - Acorp 4865PE / G, RAM - 2 x 512 MB DDR (333 MHz) from Samsung, power supply - 350 W Powerman.

It’s in vain that you didn’t attach any importance to the fact that problems with the RAM appeared after dismantling and cleaning the central processor cooling system. You probably have a boxed cooler installed? And its fastening system seriously bends the textolite, which has a detrimental effect on the health of the conductive paths of older motherboards.

The next time you put the CO in place, you could press it too hard, this could cause the glitches you described to appear. Therefore, first of all, assemble the computer on an open horizontal stand, not forgetting to unfasten the fastening latches of the CPU cooler - this will allow it to stay on the processor solely under the influence of its weight. Now try starting the system.

If it successfully boots Windows and continues to function stably, then the culprit has been identified. What should you do in a situation like this? Just look for a processor cooler that uses a metal or plastic backplate, since there are a great many of them on the market.

Now let's consider the second option, in which assembling the PC on an open stand did not help to identify the "intruder". In this case, first try rearranging the RAM strips to other slots. It is also useful to reset all BIOS settings by removing the battery located on the motherboard.

In addition, it is worth seeing if the north bridge of the motherboard is overheating - if necessary, replace the thermal interface and provide at least minimal airflow to the chipset CO heatsink. If the RAM modules remain intact, then one of these methods should probably help you.

Any problems with RAM are not as common as with other computer components. But still, they do happen and you need to be prepared for this. When problems with RAM make themselves felt, it can manifest itself in different ways: again - "BSOD" (English Blue Screen of Death), spontaneous restart of the computer, "freezes", etc.

Note: "blue screen of death" looks like this.

It can appear not only during problems with RAM, but it is one of the sure signs that unambiguously "speaks" that something is wrong with the computer and requires the intervention of a specialist. - us! :)

If rAM does not work, then there can be two options:

• 1. The RAM is completely burnt out. In this case, when turned on, all the fans of the system unit rotate properly, but the system does not give further signs of "life".
• 2. The RAM is partially out of order (malfunction of one or more of its chips). In this case, the situation is not so obvious, the Computer can successfully load the operating system and even work stably for some time, but when trying to run any resource-intensive application it will restart, hang or show BSOD.

In the second case, it is necessary to conduct a full test of the RAM for errors in its operation. This is done with the help of special programs and today we will talk about one of them. Personally, she never let me down. Meet! A wonderful utility - " Memtest».

Here's how the testing process looks like in it:

To identify problems with the RAM, the program sequentially runs eight tests, each of which loads different sections of it, writing different values \u200b\u200bto them, reading and checking against the standard. We can see the progress of all these tests in the upper right corner in the screenshot above.

If during testing errors are found in memory operation, they are displayed in red in the middle part of the window.

The screenshot above shows that this memory module is no longer alive! :)

Problems with RAM are solved, as a rule, by replacing its unstable module (normal operation with it will still be impossible to achieve). Although we continue to use some of them successfully in our work. How? In terminal clients, which we talked about in the article "". In this case, there is no active exchange with memory, and if no access to its faulty pages occurs, then it can function properly for quite a long time.

As you can see, the program "Memtest" is very easy to use (testing starts automatically after loading), it does not require any additional settings and configurations and does an excellent job with its task.

I want to give you some tips on how to fix problems with RAM:

• 1. Always test memory from the boot disk of the program only. If you run "Memtest" from under Windows, it may happen that, trying to access the faulty memory section, the program will cause Windows to restart. Do you need it once more? :)
• 2. If you have several RAM modules installed, then by testing all of them in a complex, it will not be possible to determine which particular module leads to failures. Therefore, we need to test them separately (remove all "unnecessary" slots from the slots and leave only one testable). And so it will be with everyone! ... a module :)

That's all that I wanted to tell you today about the problems with RAM. By tradition, I give a link to download the program itself "".

Note: after downloading the archive, unzip it. You will receive a "memtest" file with the "iso" extension (this is the image file of the program itself). Now it will need to be written to disk in image recording mode.

After that, insert the CD into the computer under test, put the boot from it in the Bios and test the RAM.

I recommend that you always test RAM only from under DOS, since it itself uses no more than one megabyte of memory for its own needs, and we can freely test all the rest of its space. If we start diagnosing RAM problems from under Windows, then a certain part of it (occupied by the system) will be inaccessible to the testing program and the procedure itself will not be as effective.

I would like to say a few more words about the "blue screen of death" (BSOD). It makes no sense to stretch this material into a separate article, but here this information will be appropriate. So, what useful information for ourselves can we learn from this blue screen? Pay attention to the photo below:

We are only interested in the alphanumeric value after the word "STOP". It is this designation that can tell us in which direction to move when determining a particular malfunction. This applies not only to problems with RAM. The values \u200b\u200bof the STOP error codes themselves are a great variety (depending on the specific malfunction), but according to them you can about navigate and save your time when diagnosing.

How can we sort out such a large number of stop error codes? Do not keep them all in your head! This is not necessary. Everything has been done for us a long time ago :) For example, there is one wonderful program "" (you can download it from the link), which contains their database and explanations of errors (in Russian). You just have to specify a specific STOP code and the program will give you all the necessary information.

Let's specify our value: 0x0000007A

In this case, the code indicates to us problems with RAM. I know for sure, because this is an example from my recent practice :) The program can update the error base from the manufacturer's website, so pay attention to the "Updates" item.

I would also like to tell you about this moment: is it possible that during the installation of the operating system you saw a message similar to the one shown in the screenshot below?

AT 99 cases out of a hundred (we will still write off one of the fact that the installation disk is really dirty or scratched) we are dealing with the same RAM problems. Naturally, the name of the file that the system cannot copy can be absolutely anything, since it is at this stage of installation that a large amount of data is copied into memory and some files are trying to write to its faulty cells.

Now - a few general recommendations so that problems with RAM do not bother you, remember that memory, like any other node to which voltage is supplied, heats up and its overheating can negatively affect the stable operation of the system as a whole.

Personally, I decided for myself this way: a couple of small fans in the system unit - it doesn't matter! :) What am I leading to? There are various systems for cooling RAM on the market. These can be either slip-on heatsinks attached to both sides of the memory chips, or they can be small prefabricated cooling systems that are equipped with fans and are fixed directly above the memory slots.

Here, for example, I use such a "Kingston HyperX Cooling Fan" cooling system in my.

In the disassembled state, this is an elementary children's designer, which needs to be assembled and fixed on the white latches of the slots by sliding apart (in the direction indicated by the arrows) the aluminum fasteners of the device. The device is connected to one of the fan turn-on connectors on the motherboard.

In addition, the device has a nice LED backlight :)

The situation looks like this: very often when assembling a computer, RAM modules are installed in the nearest (to the processor) slots. If I see this, then, if possible, try to immediately rearrange them away from the processor (third or fourth slot). Why am I doing this?

According to my numerous observations, it is the first two memory slots that are most susceptible to dust. This is due to the active cooling system of the processor (fan), which evenly distributes dust within a radius of 5-7 centimeters from it.

More than once, all the "repair" of a seemingly seriously inoperative machine for me boiled down to reinstalling the memory in another slot (with preliminary cleaning of the latter).

Dust is the enemy of any electronics! Sometimes it can accumulate inside a lot and - nothing, and sometimes - very little on the contacts and the complete inoperability of the entire system. Cleaning can be done with a soft brush or brush. As shown in the photo below:

Take a good look at the grooves in the connectors, because this is where the electrical contacts are located. So that problems with the RAM do not annoy you in the future, also clear the "tracks" on the module itself.

Personally, I use an ordinary rubber band for this.

Thoroughly wipe all leads with it (move the rubber band parallel to the copper contacts in the direction indicated by the arrow) and you will notice that the contacts immediately become lighter, and therefore the electrical contact is better. Install RAM away from the CPU cooling system and let your computer run for a long time and without failures :)

P.S... I thought about it and decided to supplement the article a little more. The topic, it seems, is not directly related to RAM problems, but, I hope, it will be useful to readers. What program will you write the "iso" image that I posted above? If you answered - "Nero", then - read the text further :)

Previously, I also used this software, but then I began to notice that its distribution kit grows and grows in size with each new version. And it got to a paradoxical situation: in order to simply burn a disc, I had to install a 300 megabyte software package on my computer!

Realizing that this could not continue, I began to look for an alternative for myself. I found it in the form of a wonderful crumbs called "img itemprop \u003d" image "Burn". Its size is just under two megabytes. Perfectly writes discs and I had a case when she (no questions asked) burned me a CD image in 800 megabyte to DVD, while our "popular" three-hundred-meter package required some additional plug-in for this "complex" operation :)

So, without further ado, I sincerely recommend you this little helper "".

6 reasons why RAM does not work. What steps should I take to restore ram myself?

from 120 rub. RUB

Random access memory (RAM, RAM) is a dynamic volatile memory with free access. Basically, it is a temporary archive of data for the software. As a design, RAM is a combination of modules with microcircuits connected to the motherboard.

It is RAM that provides the running programs.

What happens when the RAM is not working:

The reasons why RAM does not work:

How to diagnose RAM: download data from RAM to a flash drive with the utility (application program), the utility will monitor the RAM parameters. Then you need to boot from the flash drive and check the RAM.

What to do if the RAM is not working:

We will help you solve this problem!

If your RAM does not work, and you have not been able to find out the cause of this problem, or do not want to waste time on fixing, you can contact the "Expert" service center, where experienced specialists will quickly diagnose the RAM and perform the necessary repairs with high quality.

What to do if your computer fails due to unknown reasons? Or do you often see a "blue era of death" with a message that you may have a problem due to rAM module? You will learn how and what to do by reading this article.

From this article you will also learn the basics of knowledge about the main symptoms of a module malfunction. random access memory, and programs for testing the RAM (main storage device) of your computer.

So what causes problems with the computer's RAM?

RAM is a pair of microcircuits located on the motherboard. It is one of the most reliable computer components. There is also a rather small chance that a RAM board with some kind of malfunction will go on sale, because motherboard manufacturers conduct a thorough test for defects before selling, But, this is still possible, since every manufacturer nowadays produces quite a large amount of RAM.

As already mentioned, under normal operating conditions, RAM is one of the most reliable components of your computer, but again, only under normal conditions. Despite its reliability, memory can be damaged very easily, static electricity is sufficient. In addition to static electricity for performance rAM strips voltage drops, as well as problems with the power supply, negatively affect.

If you do not clean your computer from dust or if it is in a damp room, then this can lead to damage to the contacts that are in the connectors random access memory on the motherboard of your computer. Also, the reason for this may be an increase in the temperature of modules and other components inside the case of your computer. And the RAM module itself is not so "steel", so you need to handle it carefully, otherwise you can simply cause physical damage, which will damage it. For increased strength of the RAM, "heatsinks" are used on the RAM modules, plus heatsinks that they lower the temperature, but not much.

The disadvantage of RAM is that in the event of a malfunction, it cannot be repaired (it can only be replaced with a new one), like other computer components, therefore, when buying RAM, pay attention to the warranty period and to the manufacturer, since in case of a defective strap it can was replaced with a worker.

The most common signs of a defect in computer memory are:

The "blue screen of death" crashes, one of the surest signs of a RAM defect.

Malfunctions, and again the appearance of a blue screen while Windows is running. The reason may be not only due to a defect in the RAM, but also due to an increased temperature.

Crashes while working with bulky programs or games that intensively use the random access memory (RAM) of your computer: for example, Photoshop or three-dimensional computer toys.

The computer does not start. There may be sound signals with the help of which the BIOS informs about memory faults. In this case, the test programs will not help; it is better to change the module here.

How to check your computer's RAM for defects?

Here is one of the programs for checking the RAM of your computer - "Memtest86 +"

This program, in addition to checking the RAM, is able to determine the characteristics of your computer, for example, the chipset, processor, or what is the speed of your computer's RAM.

There are two operating modes in this program: basic "basic" and advanced "advanced".

Their difference lies in the testing time. Basic mode will detect "global" memory problems, while advanced mode will check more thoroughly.

The process of checking your computer's RAM for defects:

First, write the program to a CD-disk (also, perhaps, to a floppy disk or USB flash drive).

Turn off your computer.

Get it all out rAM modules - planks, leave one. What is it for? It is better to test the module one by one, since, in case of a malfunction, it will not be very clear which of the bars is faulty.

Turn on your computer and make sure it boots from the CD and not the hard drive.

After that, a blue screen appears with the inscription Memtest, you will immediately recognize it.

Wait for at least one full check, the test is unlikely to take much time. If there are defects, red lines will appear at the bottom of the screen.

Solution of problems:

The main solution is to replace the damaged rAM bar.

If you have only one strip, then move it to another slot and do another test. If there are errors again, the RAM module is faulty, and if there is no error, then the matter is in the fastening connector.

If you have a couple rAM strips, then do the following: remove all the strips, and, in turn, test each strip in the same slot. On error with one rAM module, it is clear that the problem is in it, but if there are errors with all the strips, then this is most likely a malfunction of the connector.

If there were no errors during testing rAM bar, and as soon as all the bars have been installed, errors appear, which means, for sure, the problem is in the connector. Try the same operation with a different connector only.

All this will help you find out if the problem is a malfunction of the operational module in your computer or if it is, after all, a defective bar.

If you cannot cope with this problem on your own, contact us for professional computer help by phone: 8-800-50-50-741.