My pc turns on but does not give video, It is one of the problems that appear in some computers and that in this article we will show you how to correct it. You will learn to solve this uncomfortable problem, do not miss it.
My pc turns on but does not give video: What to do?
In many cases when we proceed to turn on the computer it happens that the image or video does not appear. There may be different ways to find the diagnosis and why not, solve that problem. We will see in this article some solutions that often turn out to be very simple and do not require taking the equipment to a technical service.
However, there may be the problem of presenting more serious failures; in which it would already be necessary to resort to a more in-depth technical service. When my pc turns on but does not give video, it can be a symptom of a failure in an internal device that does not even include the video card, something that many consider.
Users generally feel some fear when they observe that my pc turns on but does not give video. However, it is good not to lose patience and begin to carry out some actions recommended in the following paragraphs, we hope it will be of great help to you.
Black screen appears
One of the most serious problems occurs when the computer does all its startup but the screen is completely black. This can generally be for video card maintenance reasons. However, in order to perform a good problem review, we must first have the following at hand:
- A current tester or source tester.
- Philips type screwdriver.
- Isopropyl alcohol.
- An eraser.
- Absorbent paper or napkins.
- A small brush.
- A flat-head screwdriver.
- Possible basic solution.
After having the necessary tools, we then proceed to test some forms of diagnosis through a small review of the computer. Follow carefully the instructions that we are going to give below; since the internal parts of the equipment are very sensitive.
We take a brush and begin to clean all the contacts, so that any trace of dust or grease that may be interrupting any communication can be eliminated. It is also important to check the power supplies, reset the Bios to zero. Also clean the microprocessor socket, among other procedures, but let's see each procedure in detail.
Cleaning the Memory Contacts
One of the most serious problems that usually occur in equipment, but especially its internal parts, is the presence of dust. The accumulation of dirt in the form of small particles can damage a microcircuit in the video card and even damage it completely.
This problem must be corrected through very careful cleaning of all internal parts. You should start by cleaning the RAM memory using the small brush without pressing too hard. This memory can become sulphated if the presence of dust remains in it for a long time in the RAM memory sockets.
It proceeds to clean exhaustively by extracting the RAM memory. It is important that the brush is completely dry; do not use any type of liquid. Also take an eraser, the same one that our children use at school and proceed to clean the contacts by rubbing gently.
You can also use a little alcohol soaked with a napkin and apply gently until clean. Do not integrate the card until the alcohol has completely dried. If this cleaning does not work, ask the technician to change the types of RAM in order to appreciate if the damage is in the device. If, on the contrary, when you turn on the screen it works normal again, excellent, the problem has been solved.
Restart the Bios
Called "Basic input and output system", the Bios manages the input and output of the so-called firmware interface in all computer equipment. In some cases, this configuration may present some kind of problem in the input process. It is important then to look for the problem of My pc turns on but does not give video, do the following:
The equipment is restarted by removing the battery if it is a portable device, since it contains the Bios configuration when it is without electrical connection. Although this procedure is not guaranteed to solve the problem in most cases, the PC turns back on easily and normally.
After removing the battery, press the power button for 30 seconds to fully discharge the power contained in the board. In this way, the Chip configuration configures its action to the normal state. If the Bios is unlocked the image will return to normal. Of course always depending on the types of microprocessors.
After removing the battery, you must press the power button for 30 seconds, so that all the power of the board is discharged, then the chip configuration returns to its initial state. When my pc turns on but does not give video, the problem is usually presented by the BIOS blocking, so try to perform this action to prove in some way that the problem is there.
Turn on the main board or motherboard
If we still observe that the problem persists, we must continue trying procedures, in this case we will proceed to turn on the motherboard taking into account another power source. To do this we must disconnect all the power cables from the motherboard, except for the main source and of course the micro heat sink. Remove the video card and use the VGA onboard if they have it.
Perform the test by placing another motherboard to verify if the problem starts from that point. Turn on the computer by making a small bridge between the Power and on / off pins and contacts, it may be the case that even the cables are not allowing the necessary energy to be transmitted. It is important to rule out all possibilities before totally changing the motherboard.
Check power input
This procedure allows you to verify if the problem comes from the power or power source. To know if the problem starts from there, we must use the electrical tester or tester which gives information related to the input of electrical energy to the source, the values are very varied but a technician at the moment verifies that the proportion of energy is correct.
If the board does not receive sufficient power supply, the video card may not be able to fully process the information and operate correctly. In this case, it is best to change the video card to obtain the optimal result and solve the problem.
Damaged video card
When this happens obviously we must replace it immediately and even if we look for some kind of solution to repair it. The provision of the same will not be enough to operate optimally. Despite all this, it is important that the technician can make a way to verify, if it is really the video card that has the fault.
Video card power can decrease for various reasons. Then the equipment must be tested first without a video card and another source must be placed to establish the definitive diagnosis. If a normal boot is observed then we know that the video card must be replaced immediately.
Clean Socket
The microprocessor socket is a very sensitive device. This device is a kind of heatsink for the mic, so it is removed very carefully. Likewise, the micro must also be removed with great patience and caution; After extracting, it is then cleaned with an air compressor or a small brush.
Both devices must be cleaned with care, they are very delicate. It is also important to observe that the pins are not obstructed by dust or bent, at first glance they must be totally clean and in perfect condition. When finished proceed to assemble again and turn on to see if it works correctly.
Problems on the screen of Laptops
Devices such as notebooks, Macbooks and various laptop models present a totally different system from desktop computers. The display is integrated into the system and contains various microprocessors other than the independent display of desktop PCs.
In the cases when my pc starts up and does not give video, the portable devices also have this fault. In the case of Notebooks, the power-on process proceeds normally and the lights turn on. However, it does not show the video on the screen and one of the main causes may be due to problems in the video card
In this case the damage occurs in the video chip of the card. This small device is located next to the microprocessor, so it is always exposed to high temperatures; these rise more when portable devices are used in bed or on desks where they do not receive any type of ventilation.
Unlike desktop PCs where the case or tower has a series of slots where they receive sufficient ventilation. In this case, the cooler should be cleaned. It consists of a small internal fan that notebooks and some desktop computers have.
It allows them to regulate the temperature and bring it to normal levels. When this device stops working, overheating can cause video card chip failure. We then observe that when the laptop is turned on, it starts up in a normal way but altering the operation of the chip which will not operate in the best way.
The video chips little by little give warnings about their possible failures. We can observe in computers that the image suddenly fluctuates or simply disappears for a few minutes. This is a direct and indicative symptom that the video card is beginning to damage.
In the case of Notebooks, this failure can be seen by touching and feeling the computer from the bottom and we can appreciate an abnormal overheating. This problem can be easily solved by placing supports that give it more height and there may be a little ventilation at the bottom. The cooling takes place little by little and the temperature drops considerably.
Maintaining a good level of cooling in the chips is important, we recommend placing even the egg cartons under the laptops to maintain ventilation and freshness in them. Although aesthetically it is not a good example, it is important to lower the heat of the equipment.
Make a Reballing
This procedure is known to many computer technicians. It is a process in which the video chip is soldered, the process consists of applying high temperature near the video card to solder the Gpu of the motherboard. The video chip is soldered directly to the motherboard, and it may be that with high temperatures it can regain its operability. This procedure is recommended by computer technicians. Do not do it at home.
One of the disadvantages of this procedure is that the arrangement does not have a duration date. It is more advisable to solve the temperature problem even by bringing a cradle fan very close to the equipment and placing it from the bottom. Remember that the temperature at a good level allows the equipment to operate optimally.
How to prevent failures?
It is important to take into account certain prevention and security measures with respect to devices and laptops. The constant movement and movement can make my PC turn on but it does not give video. Likewise, cleaning the dust in the various areas where it can accumulate represents a form of maintenance that can allow the durability of the microprocessors.
Use a small vacuum type extractor that has enough extraction power, there are small and very practical models on the market. It is important to be careful not to touch the various elements that contain it. We reiterate the use of a common fan near the bottom to maintain the most suitable temperature. The ideal is to dissipate the heat.
It is important to consider that these procedures must be brought down to temperature. Otherwise, it is necessary to change the thermal paste immediately. This device allows you to balance and control the temperature on the motherboard, if the motherboard does not function optimally and even the video card and the chip can be damaged over time.
No monitor power on
Sometimes the problem can only appear on the computer monitor. Remember that in desktop PCs the monitor is independent from the entire integrated system. Although it represents an advantage it can happen that the limit damage that my pc turns on but does not give video.
There are many ways to really know if the problem is coming from the monitor. The simplest is to remove the cables from it and insert another monitor that is in good condition. It is then verified whether I turn on or not. Based on the result then we can make a decision.
Monitors generally have a very similar system to television screens. So the problem can be solved when the situation is focused on that point. and is left even side as Repair hard drive
As long as it is also considered that it is really the monitor who presents the problem. In these cases, it is advisable to take the screen to a specialized technical service where they can solve the problem.
Other solutions and recommendations
When my pc turns on but does not give video after several times that I have looked for solutions it is not time to give up yet. The world of computing has the quality of showing various alternatives to solve and repair some failures in computers.
Following this guideline, it is good to try to verify some simple details that may be altering the operation of the screen and the lack of image on the computer. In other cases the failure is also accompanied by a constant noise that can be observed on the screen.
In these cases, it is recommended to use a tester again and when opening the equipment to check if the video card is receiving the corresponding volume of energy. This practice is very common in computer technicians. One of the first steps is to test the transmission levels with the indicated instruments.
Another case consists of carrying out a verification of the hard disk, for this it is necessary to extract it and take it to a technical service where it can carry out a revision. When the failure comes from a hard drive, it is an indication that it will have to be replaced very soon. This device is one of the most delicate that a computer has. Our recommendation is not to manipulate or if you do not know how it works.
It is important to consider within the plans when acquiring equipment to take into account the maintenance issue. Our equipment, like other devices, have parts that can suffer wear. For no reason do you consider that a computer will function without failure. Consider it in planning when you get a team
Good maintenance
Although many forget to perform preventive maintenance, it is one of the ways in which computer equipment can last longer. For no reason hesitate to do preventive maintenance annually with your trusted technician. It is important to remove the dust to avoid changing the thermal paste, which is one of the ones that suffers the most from this problem.
The physical cleaning of the computer can help in many aspects to give efficiency in the operations. However, not only the equipment as such requires maintenance. To avoid saying that my PC turns on but does not give video, it is also necessary to check the fans, the graphics card and the CPU heatsink.
Like internal parts, microprocessors, video cards and various devices can be damaged by dust. Remember, the greatest enemy of a processor is dust. So air flow must be present as well as constant ventilation. Annual maintenance should be arranged in the foreground by removing dust.
If the equipment is exposed to poor ventilation and excessive dust, maintenance should be carried out every three or four months. Always depending on the flow and amount of dust where the computer is. It does not matter if the laptop or desktop equipment, both equally suffer from failure when dust has entered the internal parts.
It is good to clean the micro fans and processors that are visible to the naked eye on your own. And even on desktop computers by removing the back cover of the so-called CPU. You will be able to see at a glance how all the components are easily accessible. This helps to be able to clean them with a very sensitive brush. With regard to laptops, the process is a bit more difficult.
Know the components
In the case of the thermal plate, it is a very important component for computers. If my pc turns on but does not give video, it may even be due to problems with the thermal card. A vital disadvantage in this element is its wear and tear. Where the dust helps produce its expiration. However, good preventive maintenance helps limit and reduce wear.
The hard drive must also be cleaned constantly. In this case we recommend taking it to technical service. Don't let time damage those components. On the other hand, cleaning it can be done through the equipment itself. There is the defragmentation of the disk that is carried out using the services that Windows has.
You can click on start, then on my PC or computer, depending on the version of Windows, then press "local disk C". By clicking on the right button you select properties, at the top you get «tools». When you click, three icons are displayed where you can select whether to review the disk, cleaning or defragmenting it.
We recommend scheduling defragmentation every three days, since if the computer is in constant use, the cells of the data and files tend to separate. This can cause delays in basic operations and violate the operation of even the video card.
Cleaning the system files can make my pc turn on but does not give video. So performing these software cleaning services also helps to improve the efficiency of the computer.
We do not suggest to be constantly enslaved to the cleaning of the equipment, but to understand the importance that they have to be able to carry out various activities. Computers give it a level of importance in the life of any user.
There are some files that can damage certain components that limit certain operations on the video card, the chip, the thermal card. When you try to download programs, check the amount of transmission and the settings of each one. It can happen that the excess of processed information recharges certain elements such as a video card.
Do not make the mistake of downloading video games left and right or some other program related to the use of the video card, if you do not really know where it comes from. Some files have malware extensions that are aimed at damaging computers. Always listen to the recommendations that the operating system itself offers.
It is also good to check which programs are not being used and proceed to uninstall it by locating the "Uninstall Programs" application in the "Control Panel". In the same way, it is advisable to be in contact and maintain a trusted computer technician, who may be the only one who manipulates the computer.
Knowing a trusted person allows you to establish a mutual relationship in which not only information related to computer failures and problems will be shared. But you will also have information on hand that can help solve the problem without having to take it to the technical service.
Finally, do not allow any other person to try to manipulate or open the equipment if you have not previously authorized it, the problem with my pc turns on but does not give video. It can only be solved when you go to trusted personnel. When all the review and diagnostic procedures have been used by the user himself.
Learn to know the signals that computers sometimes send, before falling into the fallacy that my pc turns on but does not give video. It is good to observe the symptoms that the screen and the video card itself indicate as the equipment is used. Do not omit these signals, always consult your technician who will have a previous answer.
Take care of your equipment, perform annual or semi-annual maintenance depending on the condition. Avoid wasting a fortune by not considering timely maintenance. Many regret doing or doing it at the moment and remember our recommendations.