Many people now have laptops or netbooks. At the first breakdown, many are accustomed to immediately calling service centers. Smarter people will start looking for a solution to the problem on the Internet or asking friends. However, most breakdowns can be repaired at home using available tools.
Introduction
Theoretically, you can fix absolutely any breakdown. However, not everyone can fix a laptop. And here it’s not a matter of skill (there is a lot of information on the Internet), but of fear of worsening the situation. This is why children master computers better than adults, since they (children) are not afraid to press all the buttons in a row and tinker with technology with a screwdriver.
Not all breakdowns can be repaired at home, and therefore your laptop may be taken away for a week or even months. In large, cool companies, they will give you another laptop for the duration of the repair (but you can count such companies on one hand).
What's broken?
Obviously, before you fix something, you need to understand what is broken. However, the cause of the breakdown is not always clear. For example, your keyboard does not work, and the reason will be in the motherboard. Or even worse: the laptop simply won’t turn on. In most cases, the system generates some kind of error. This is exactly what you need to focus on.
Always use search engines! Even professional repairmen don’t know everything about everything, but on the Internet you can find the answer to almost any question.
There are two types of failures: software and hardware problems. Software problems are treated by rolling back the system, checking for viruses or installing/removing drivers, etc. This article is about hardware problems.
Blue screen of death
A blue screen (BSOD) tells us about a problem with the hardware, and sometimes with the drivers. To understand what a blue screen means, you need to either google your error number (type 0x00000087) or use the BlueScreenView program (download, .exe file, 60 KB).
This program will find log files on your laptop and show you a list of all BSODs that have ever happened. There you will see the name of the file or library that failed, highlighted in red. By googling the error and the file name, you will find the answer to the problem. In my case, the video card overheated.
Overheat
Keyboard
There are several problematic cases with keyboards.
1) The keyboard makes unpleasant sounds, clicks when pressed, presses slightly, but it works.
In this case, you need to remove the keyboard. Removing keyboards from laptops is difficult. Sometimes the keyboard does not come off completely. For example, you can only remove the buttons, but to remove the board itself, you need to completely disassemble the laptop. But usually the keyboard can be removed by opening special clamps or using a screwdriver.
The keyboard clicks either because of crumbs and debris that got underneath them, or because of a defect in the keyboard itself. It is better not to blow out the crumbs, as you can drive them even deeper into the body. It's better to remove the keyboard and clean it. You can use a vacuum cleaner, just hold it carefully so as not to accidentally damage the equipment.
Some keys click because they rub against unpolished parts of the laptop body. This is especially true for cheap aluminum laptops. Then you simply remove the key (you can pick it up with a screwdriver) and remove the protruding pieces of plastic or aluminum with a knife.
2) You spilled something on the keyboard.
Act quickly! Turn off the laptop and remove the battery. Remove the keyboard and quickly dry it with a hairdryer. Let it sit for a day or two. Result: the keyboard will either work, or the laptop will never turn on :(
It all depends on what and how much you spilled on the keyboard. If you have a little water, it's okay. And if you have a cup of coffee, then good for you. Coffee will clog the aluminum contacts.
Although even such a case can be repaired. Special conductive adhesives are sold in stores. You remove the keyboard and see that some of the aluminum contacts are either black or very worn. Then stick adhesive paper along the contour. You can also use adhesive tape, but adhesive tape tends to peel off excess when peeled off. In other words, your task is to isolate other conductive lines from yours. Those. you make a stencil on which you will then apply glue.
3) Some keys do not work
Sometimes the rubber or silicone pads under the buttons tear or fall off, then you need to remove the key and put the pad back. Usually, if the pad comes off, the key is completely pressed in and cannot be pressed.
Battery
The main problem is the decrease in capacity. Is your battery holding a charge less and less or not charging at all? Then it's time to throw out your battery and buy a new one. Fortunately, they are inexpensive.
Some craftsmen offer to repair the battery. But this requires very advanced skills. So don't torture your brain - buy a new one.
By the way, there are programs that can show you the capacity and percentage of battery wear. For example, the same HWMonitor.
The laptop clicks suspiciously
This applies not only to laptops, but to computers in general. There are two options.
1) The cooler (fan) clicks. It may play, then you just need to tighten the screws. Or you need to replace it - it is inexpensive.
2) The hard drive clicks. But this is already a serious problem. Most likely, you will have to change the hard drive.
How to determine what exactly is making the clicking sounds? You need to listen! Disassemble the laptop and look where the hard drive is and where the cooler is. Now put the laptop back together and turn it on. And then put your ear to the places where the culprits are supposed to be. Where the sound is louder, there is a problem.
True, there is also a barbaric method that I sometimes like to use - but it only works with computers. You need to shake or knock on the case, then if it is a cooler, it will start clicking even more. And if it's a hard drive, then it will break :)
Monitor problems
Then the problem is either in the monitor itself or in the video card.
1) Some or even one pixel does not change color. They can always be black or always the same color. I had one pixel that was always green. This means that the monitor is damaged. Or rather, the pixel (small diodes in it) was damaged.
Solution: You can buy a new monitor. But this is not necessary, since such a breakdown will not interfere with the operation of the laptop (except perhaps aesthetically).
2) The screen is dim. Those. There is an image, but there is no brightness. Sometimes the monitor appears completely black, then shine a flashlight or lamp directly on it. Then you will see that it works - there is an image.
The cause of such a breakdown is the failure of the backlight or screen matrix. This is fixed in services. Sometimes you can fix it right at home. But you are unlikely to be able to fix it manually. If it cannot be repaired, then buy a new laptop monitor.
3) The screen flickers or shows incorrect colors. In this case, it is difficult to determine what exactly is broken. This may be a glitchy video card or the monitor itself is broken, or rather the matrix controller.
Again, this is difficult to fix at home.
Connectors don't work
There may be several reasons. We do not consider software reasons (install drivers).
1) The wires came loose. It happens. We disassemble the laptop and re-solder the wires. If a lot of wires have come loose, then look on the Internet for a diagram of your connector. The wires are all colored, so you can understand what's what.
2) Clogged with dust. Take a cotton swab and clean it. For small gaps, I use a bent paperclip with cotton wool wrapped around the tip.
3) I read somewhere that someone managed to insert a USB mouse into the HDMI connector (!!!). As a result, his laptop was completely broken. I don’t know how true this story is, but watch what you put where. You can not only break the connector, but also short-circuit something. Although I'm not sure about the closure.
The video card or RAM is broken
Everything here is relatively simple, just like on a computer. The boards are inserted into special connectors. We take out the non-working board and insert a new one. However, every laptop works differently. Therefore, look in search engines for a diagram of your laptop model (especially for laptops assembled in the basement on your knee).
Afterword
This article contains all the necessary basics for beginners and insecure intermediates. If you want details on specific malfunctions, then look for more detailed articles on our website or look for answers to questions on the Internet.
Thank you for your attention!
Latest tips from the Computers & Internet section:
Did this advice help you? You can help the project by donating any amount at your discretion for its development. For example, 20 rubles. Or more:)
The very first thing you need to do when you want to repair a laptop yourself is diagnostics. Correctly diagnosing the malfunction of a broken laptop is not easy. Need experience. Some faults can be diagnosed without disassembling the laptop; as a rule, these are faults related to the hard drive or programs. Diagnostics involving disassembling a laptop is much more difficult. Each laptop is disassembled differently, but what they have in common is that in addition to many screws, there are many plastic latches that need to be opened without damage. The screws should be unscrewed with good branded screwdrivers - otherwise you can tear off the screw slots and make disassembly much more difficult. Here are a few signs of malfunctions and possible causes. Sign. The laptop does not turn on; when you press the power button on the laptop, nothing happens. Causes. Maybe:
- lack of supply voltage, the power supply produces the wrong voltage (measure with a tester), there is not enough power;
- dips, ripples and voltage surges (watch with an oscilloscope);
- short circuit in the battery;
- malfunction of the motherboard, power connector;
- The power button or power switch board is broken
Sign. The laptop turns on, but does not emit any signals, there is no image. Reason. Maybe:
- laptop freezing
- malfunction of the power supply, motherboard, video card
Sign. The laptop turns on, there is an image on the screen, but there is no loading Reasons. Maybe:
- hard drive failure
- hard drive controller failure
Sign. The laptop turns on, there is an image on the screen, the download begins, but Windows does not load. Causes. Maybe:
- hard drive damage
- viruses
- Some Windows system files are damaged or missing
- motherboard hardware problems
- defective memory
Sign. When loading, a blue screen appears Cause. Maybe:
- hardware failure
- drivers
- memory
- hard drive damage
Sign. When loading, artifacts appear on the screen in the form of lines, stripes, and in DOS in the form of random Cause symbols. Maybe:
- video adapter is faulty
- The matrix is faulty (everything is fine in DOS)
Sign. When loading, the indicators show that the hard drive is working, but there is no image. Causes. Possible screen malfunction:
- the inverter, matrix or video card burned out
In principle, you can replace the matrix yourself, but you need to know exactly the type of matrix, the number of backlights, the number of pins, and the location of the cable. If the matrix turns out to be electrically incompatible (this is not uncommon), it may not be accepted back. Therefore, it is advisable to carry out in specialized places. Damage to the laptop case may include the following:
- The back cover of the screen is broken, the screen is peeling, the hinges are loose
- Screen hinges or frame are broken
- part of the cover on the matrix side is broken
- The top or bottom cover of the laptop case is broken
Fortunately, these parts need to be replaced. Such parts are sold abroad and can be ordered. However, you need to know exactly the partnumber of this part - otherwise it may not fit due to even small changes in the modification. The battery does not hold a charge. It is necessary to distinguish between 2 types of laptop battery failure:
- The battery doesn't work at all
- laptop battery lasts at least for a short time
In the first case, the control board in the battery or the circuit on the motherboard may be faulty. In the second case, the batteries were low.
Breakdowns that you can’t fix yourself
Such breakdowns include:
- after it has been poured, it is unlikely that it will be possible to get it out;
- - it is unlikely that you will be able to get it;
- video card repair;
- inverter repair.
Sign. The laptop turns off spontaneously after some time after use. The flow of warm air from the cooling system is reduced. Causes. Maybe:
- laptop overheating. Requires dust cleaning. You need to check the processor temperature with programs - if it is more than 85 degrees, then you should disassemble the laptop and clean the cooling system.
- if after cleaning the temperature rises to a critical level, then the video card or processor is faulty (Athlon processors burn much more often than Intel processors)
The video card can only be replaced if it is separate and of the MXM standard, but it is not at all easy to get. But if you manage to get it, it may not be of the right class. If it turns out to be that class of three. then its BIOS may not fit. The BIOS of the card can be changed, but it is not a fact that this will solve the problem - ATI video cards are not always compatible with motherboards. If the keyboard is flooded, then you should not warm it up with a hairdryer - this ends up with the keyboard still not working, but the buttons melting. Broken keyboard buttons - usually the button mounts either on the keyboard or on the buttons themselves are broken. If the fastenings on the keyboard are broken, you will have to replace the entire keyboard; it will not be possible to restore the fastenings. If the mounts on the keys are broken, you can select keys with similar parameters from other keyboards.
Most common laptop problems can be fixed on your own. A collection of articles and guides on electronics repair will help you troubleshoot various breakdowns and solve a number of problems without contacting a service center.
Microsoft has always worked to protect users' personal information. But at the same time, users themselves can fall into this trap if they forget the set password. Naturally, you can simply reinstall the OS, but there are other, less radical measures. One of the simplest and most common methods is to log in as your user using safe mode and remove […]
If you encounter a problem where the mouse on your laptop does not work, do not rush to purchase a new input device. Since the mouse is designed quite simply, in most cases you can easily identify the cause of the problem and fix it. Why doesn't the mouse work on my laptop? Most often, the problem occurs for one of the following reasons: operating system failure; failure […]
Over time, the laptop battery loses its original capacity, which affects the battery life of the device. If your laptop operates on a full charge for about an hour or stops turning on at all without a connected power adapter, do not rush to purchase a new battery; in some cases, it is possible to restore the laptop battery yourself. Calibrating the battery using a special utility If the battery starts […]
If your device stops responding to pressing the Power button, make sure that the problem is not caused by a completely dead battery. In addition, check the integrity of the laptop's power connector, as well as the power adapter. If everything is in order, then the cause of the malfunction may be a failure of the power button itself. Then the question arises, how to turn on a laptop without a power button? If the device […]
Problems with the keyboard occur quite often on both desktop computers and laptops. But if a computer keyboard can be easily replaced with a new one in case of failure, this is not so easy to do on a laptop and in some cases it is financially costly. If the keyboard on your laptop does not work, what to do in such a situation, what […]
If your computer suddenly turns off while playing video games or demanding programs, this is most likely due to severe overheating of the processor and/or video card. In this article you will find the answer to the question of what to do if your laptop turns off while playing. Why does my laptop turn off while playing? Time does not stand still, and each new laptop model is released [...]
Without exception, all laptops are equipped with a touch panel, which is a pointing input device and allows you not only to control the cursor, but also to perform other actions. Using modern, high-precision touchpads that support multi-touch gestures, users can perform manipulations such as scrolling, zooming, highlighting, and calling up context menus with light touches using one, two, or three fingertips. But what if, having [...]
Power supplies, or adapters in other words, not only for laptops, but for other devices in most cases do not have special fastenings (screw connections) for repeated assembly/disassembly. Instead, they have a glued body, since manufacturers expect that users will treat such elements as consumables and, if they break, will simply buy new ones. But it is not […]
If you are faced with a situation where the fan on your laptop is constantly running at full power, creating a lot of noise, then in most cases this is a sign that there is something wrong with the system. The problem may be due to a failure of the cooling system, the accumulation of a large amount of dust, as well as a heavy load on the system, which causes overheating. Ways to solve […]
The hard drive is the main data storage on a laptop, and if the BIOS cannot detect it, the operating system will not start, and the user will see a corresponding message on the screen. If, when you turn on the laptop, the message Reboot and Select proper Boot device or Insert Boot Media in selected Boot device and press a key appears on the screen […]
As long as the laptop works simply and reliably, it’s good, but when it breaks, then it comes full... The price of a system unit and a laptop is almost the same, but it is much easier and cheaper to maintain a system unit than a laptop. Replacing components is easier for a system unit than for a laptop. But since you have a laptop and you need it, and not a computer, then in the article below let’s look at how to properly disassemble, repair and reassemble a laptop.
Malfunction: The cooler (fan) of the laptop does not turn on, as a result of which the laptop overheats and the processor’s self-defense system is triggered.
Action. Checking the cooler. After checking it, I realized that it was in normal working condition. But as a result of troubleshooting, I noticed the following: the cooler turned on temporarily at a certain position of the laptop. Having disassembled the laptop, no visible damage was found, the cooler itself works and did not need lubrication.
Result. As it turned out later, the MCP-67 bridge, which is responsible for the peripherals, broke down and as a result the cooler does not work. The MCP-67 bridge needs to be replaced, but it is not cheap. More precisely, the repair will cost you the purchase of a new system unit :)
Then, by chance, on the Internet I found a repair video on disassembling the Asus X50N laptop. I decided to take a look and this is what I’ve been looking for for so long!
3 videos were posted on disassembling, repairing and assembling the Asus X50N laptop. After watching all three parts of the video, I made a lot of discoveries for myself about how laptops are repaired in most cases. You can watch these videos below the article.
- Sometimes you need to change thermal paste because its heat dissipation properties deteriorate over time. If you change it once a year or at least once every couple of years, then there might not be any problems with the bridge MCP67. The reason that the MCP67 bridge on the Asus X50N laptop fails is that there is no separate cooling for it. It is cooled by a metal case and part of the heat is transferred through the thermal tape to the keyboard body. This is such a wonderful cooling radiator for the Asus X50N laptop.
- Since I had to completely disassemble the laptop, I decided to change the thermal paste a bunch on the processor and other places where it was
- The cooling grill of laptops needs to be cleaned regularly, even more often than computer system units.
- The same problems and solutions can be applied to other laptops.
Asus X50N laptop repair video
Part 1
Part 2
Part 3
I disassembled the laptop and repeated everything I saw in the video, with minor changes. On the side where I would put the iron under the foil, I put a couple of layers of ordinary office paper so that, in addition to the bridge, other elements of the laptop motherboard would not float. Yes, I’ll explain why they wrapped the entire motherboard in foil. So that the solder reaches the desired temperature and then the board cools evenly and does not lead to heat.
After such repairs, I assembled the laptop. I was pleased with the result! The laptop has been working for over a year now. No other problems appeared. The laptop began to work faster, the cooler made less noise.
After watching a video on laptop repair, I weighed the pros and cons and decided that I would try to repair my laptop myself. Good luck with the renovation!
P O P U L A R N O E:
...or do-it-yourself laptop maintenance
What is this: a timer? This is a device or program that counts down a given time. Having reached a given point, some action occurs: for example, turning off the computer or launching another program.
This article describes the main methods independent. The table contains symptoms of malfunctions and their components, which are often difficult to determine without careful diagnostics using special equipment. As can be seen from the following, the main problems with most budget laptop models arise due to overheating And breakdowns. This is explained by the fact that laptop video card, this is the most loaded part, after the processor. But heat dissipation from the processor is usually several times more efficient. Therefore, when using a laptop, during operation, gradually occurs. Its efficiency decreases, and, first of all, the laptop’s video card suffers.
Basically, these problems can be resolved using shrinkage (rebowling) or replacing the corresponding microcircuits. However, to our great regret, in recent years, more and more manufacturers laptops began to use a compound to secure chips on the board. In these cases, the probability good luck such a board is greatly reduced, since the compound is very difficult to remove without mechanical motherboard damage, and often have to replace the entire system board. In addition, apparently in order to reduce the cost, on many budget laptop models, instead of normal PCB, for production motherboards They began to use some strange material with a high temperature coefficient of expansion. When such a board is heated by a video chip operating under load, it becomes so deformed that it is noticeable to the naked eye. Naturally, such bends eventually lead to separation of the chip from the board. Shrinking or replacing chips on such boards is very difficult and is practically impossible without special stations.
You also need to understand that due to overheating, there can be three types of malfunctions:
- Unsoldering the chip from the motherboard pads - eliminated by soldering the chip(shrinkage, rebowling), using a hair dryer or infrared station.
- Mechanical chip separation, due to thermal deformation, from the motherboard pads (most often found when chips are factory installed on lead-free solder with a high melting point) - a repair method, as in the first case, but since the soldering temperature is much higher (more than 400 degrees), the probability of successful repairs are decreasing.
- Mechanical chip separation, due to thermal deformation, from the motherboard along with the pads (most often found when factory installing chips on lead-free solder with a high melting point), as a rule, in this case it is necessary motherboard replacement.
BIOS beeps when turning on a faulty laptop.
- long signal
* short signal
Award BIOS
|
Problems with CMOS Setup or system board |
|
|
Keyboard controller error |
|
|
Random access memory (RAM) error |
|
|
Video card error |
|
|
Error initializing keyboard |
|
|
— * * * * * * * * * |
Error reading from ROM |
|
repetitive * |
Problems with the power supply |
|
repetitive - |
RAM problems |
|
Continuous |
Eating problems |
AMI BIOS
|
Eating problems |
|
|
RAM parity error |
|
|
Error in the first 64 kB of RAM |
|
|
System timer malfunction |
|
|
Processor problems |
|
|
Keyboard controller initialization error |
|
|
Problems with the motherboard |
|
|
Video card memory error |
|
|
* * * * * * * * * |
BIOS checksum is incorrect |
|
* * * * * * * * * * |
CMOS write error |
|
Video card error |
|
|
Video card error |
Symptoms of malfunctions, probable causes and repair methods
Laptop won't turn on
|
When the power supply is connected, the laptop's signal LEDs do not light up. The laptop does not respond to pressing the power button |
— The power supply is faulty. — Break in the cable. — The power connector is faulty. — Breakdown of the primary power circuit on the motherboard. |
Check the voltage at the output of the power supply. Check the resistance of the input power connector to the short circuit. If power is supplied to the laptop, complete disassembly of the laptop is necessary to access the motherboard and further diagnostics. |
|
When the power supply is connected, the laptop's signal LEDs light up. The laptop does not respond to pressing the power button |
— The power button or the cable (connector) connecting it to the motherboard is faulty. — Damage to the power management circuits on the motherboard. — The south bridge burned out or became unsoldered. |
Complete disassembly of the laptop is required to access the motherboard, further diagnostics and repairs. |
|
Produces a beep code for a memory fault. |
— The memory chip is faulty, or there is a bad contact in the connector, or the connector contacts have become unsoldered from the motherboard. — The north bridge is faulty. |
Clean the contacts, replace the memory with a known good one, if this does not give results - complete disassembly of the laptop for diagnostics and repair of the motherboard. |
The laptop turns on, but there is no image.
|
Dark screen. When illuminated with a strong lamp at a certain angle, a faint image can be seen. |
— The matrix backlight does not work. — The light bulb has burned out. — The light bulb inverter burned out. — Damage to the power supply circuit or inverter control. |
It is necessary to disassemble the laptop screen to accurately identify the fault and replace defective elements. |
|
— White screen when turned on, or thin stripes on the white screen. — Artifacts on the screen. — Audio video error codes. — Initialization is slowed down at the initial post codes. — Works only on an external monitor, but freezes when loading. There is no image on the screen, or the screen backlight just turns on. |
— The video chip or removable discrete video card is faulty |
To repair a laptop, it is necessary to either shrink the video chip (rebowling) or replace the chip with a new one (if the previous operation did not produce results). Replace the removable discrete video card. |
Some components of the laptop do not work
|
The keyboard and touchpad do not work, the USB ports do not work. |
— South bridge does not work — The keyboard controller is faulty. |
If the south bridge is damaged, shrink it or replace it, or replace the motherboard. Replacing the controller. |
|
The DVD (CD) drive does not open with the button. The disk in the drive rotates, but is not readable. |
— There is no contact in the drive button, poor contact in the connector connecting the drive to the board. — The connector has come unsoldered from the board. — The controller is faulty. — The drive is faulty. |
Remove the drive and clean the connector. Open the drive with a pin, insert the disc and check the operation of the drive. If the disc is readable, resolder the drive button, otherwise install a known working drive. If there is no result, you need to completely disassemble the laptop and diagnose the fault on the motherboard. |
|
Some keys on the keyboard do not work |
— The keyboard is out of order due to liquid spillage or broken contact pads. — Poor contact in the keyboard cable connector. |
Use a tester to check the conductivity of the contact pads on the keyboard cable. If the contact pads are worn out, you can cut the cable by 1-2 mm so that it goes deeper into the connector. Repairing the keyboard itself requires its complete disassembly with the flexible printed circuit boards separated. Damaged paths and areas are restored with conductive varnish. This operation is very labor-intensive and does not always lead to the desired result. Replace the keyboard. |
|
WiFi, Bluetooth, and modem modules do not work. |
— Poor contact in the PCI (PCIe) connector — The module is faulty. |
Check that the driver is installed correctly. Install a new driver. Remove the module and clean the contact pads. Replace the module with a known working one (with installation of new drivers); if there is no result, check the soldering of the connector contacts to the motherboard and the wiring circuit. |
|
Sound doesn't work. |
— The driver is not installed, or the wrong driver is installed. — Broken contacts in the headphone jack. — The audio amplifier chip has burned out or has become unsoldered. — The audio codec chip has burned out or has become unsoldered. — Problems with the south bridge. |
Reinstall the correct driver. Check and resolder the headphone connector. Test the audio circuits on the motherboard and replace defective elements. |
|
The built-in web camera and microphone do not work. |
— Not installed, or the wrong driver is installed — Poor contact in the cable connector. — The web camera or microphone capsule is faulty. |
Reinstall the correct drivers. Check cable and connectors. Replace faulty elements. |
Laptop doesn't work well
|
During operation, the characteristic clicks of the hard drive are heard. |
— Errors on the hard drive. — Areas of difficult to read or “bad” areas have appeared on the hard drive. |
Use a third-party program to check SMART and the surface of the hard drive for “badness”. If there are any bad problems, replace the hard drive. |
|
The operating system takes a long time to load, programs start slowly, and there are frequent freezes. |
— Winchester is highly fragmented. — There is not enough free space on the system disk. |
Clean, scan, and defragment the disk. Clear free space on the system disk. |
|
Frequent freezes during work. Automatic system reboot. |
— Winchester is highly fragmented. — There is not enough free space on the system disk. — The system is corrupted or infected with a virus. |
Clean, scan, and defragment the disk. Clear free space on the system disk. Perform a system restore. Clean the system from viruses. |
|
When the laptop is used for a long time, especially when the video system is loaded with movies or games, the system slows down and reboots. |
— Overheating of the processor and video system due to poor cooling. |
Disassemble the cooling system, clean it from dust and replace the thermal paste. If there is no result, the video chip is faulty. |
|
The laptop works fine in VGA mode. When installing video drivers, it constantly turns off on its own, reboots, and artifacts appear on the screen. |
— The wrong driver is installed. — The cooling system is clogged with dust or the fan does not work. — The video chip has become unsoldered from the board due to overheating or has failed. |
Reinstall video card drivers. Clean the cooling system and replace the thermal paste. Check fan operation. If there is no result, either shrink the video chip (rebowling) or replace the chip with a new one. |
Laptop screen problems
|
The image is normal, but individual white dots of one pixel are visible on the screen. |
— Matrix defect “dead pixels” |
Not being repaired. Only matrix replacement is possible. |
|
The image is normal, but individual white or colored vertical or horizontal stripes of one pixel are visible on the screen. |
— Malfunction of the matrix decoder. — Less commonly, a cable malfunction. |
A decoder malfunction cannot be repaired. Only matrix replacement is possible. |
|
The image is distorted or missing. The screen is covered with multi-colored stripes. |
— Malfunction of the matrix cable. — Matrix malfunction. — Malfunction of the integrated video chip. — Malfunction of RAM (if the laptop has a video chip without its own video memory). |
Connect an external monitor; if the image is normal, the problem is in the cable or matrix. Otherwise, replace the memory. If the problem persists, the video chip has failed. |