WIN10 Computer black screen How to teach you seven ways to solve

I think many people will be like me, often encounter some computer problems and helpless. For example, what about the computer black screen? Well, now I share with you some of the reasons for the computer black screen production and solutions.

　　

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Computer black screen How to do one: monitor

Because of the display itself and can not work due to the black screen, such as the power cord of the display problems, power plug contact Poor (note: Both sides are possible), power switch is bad, the display internal circuit failure.

Computer black screen How to do two: signal line

PC use of the display using the 15-pin D-Plug connection method, wherein the 13th, 14-pin is a line-field synchronization signal, the display by judging whether the two signals to open the filament and high-voltage power supply path, while the two signals through the positive and negative polarity of the signal combination and line frequency difference, To transmit the signal as a display mode. If the signal of the line field is short, then the power indicator of the monitor is green, but no image is displayed, and if all is missing, the power led of the Monitor is orange and no image is displayed. For this situation mainly check the display signal line D-shaped plug whether there is a broken needle, crooked needle or short needle case, and the other is the signal line internal disconnection. The solution is to replace the high-quality signal line. We have a "videooffmethod" in the power management of the computer's CMOS setup, one of the "V/hsync+blank,blankscreen,dpms" three options, the first of which is to select the graphics Output line field signal to control the display's energy-saving mode.

　　

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Computer black screen How to do three: graphics card

The most directly associated with the display is the video card, if the video card is not sent out or a signal is not sent out, then of course, the display will not light. In actual use, the graphics card and the motherboard is not compatible with the graphics card output socket contact is not good or loose, and then there is the video card is damaged, the card and the motherboard of the AGP slot contact is not good, these will cause the monitor does not light. The elimination of such faults requires careful patience, carefully check the graphics card and motherboard contact, whether there is a phenomenon of contact instability. In case of incompatibility, it can only be judged by experience and information.

Computer black screen How to do four: power supply

Everyone in the machine is always in the CPU, memory more money, and in the power supply is always buckle door. But the power supply as the power source of all the parts of the computer, if it is a problem, the other parts can still work? We generally know that if the power supply is faulty, the host will have a continuous short "beep" sound alarm, and the monitor does not light. However, there is a silent time, the last check to find out, unexpectedly is the problem of power.

　　

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Computer black screen How to do five: motherboard

The main is the CMOS Setup error, set the first initialization of the video card is PCI or on-board AGP graphics card, but the display is not connected to the corresponding location, the result of normal computer startup, can be the display is not lit. Moreover, is CPU, memory or video card, sound card, modem, network card conflict problem, also cause the host does not start and cause the monitor black screen failure.

Computer black screen How to do six: software conflicts

Due to the general expansion of the PC, so that the PC has a great vitality, so it has created thousands of software companies, for everyone to compile a number of applications software, but because these different applications are compiled by different companies, put them together, It is possible to crash a black screen because of an address call conflict. , the most typical feature of this type of failure is that when a certain software is installed, after the system prompts to restart, after the self-test screen, the display only the cursor flashing, and then there is no movement. The solution to this kind of problem is also very simple, just remember what software was installed, press and hold the "Ctrl" key at startup, select the 3rd entry into Safe mode, the software just installed to uninstall it.

　　

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Computer black screen How to do seven: Virus destruction

The virus is extremely destructive, especially with the advent of the internet era, and more and more viruses spread through the internet. Can cause the monitor black screen virus such as: CIH and so on virus, this kind of virus is extremely destructive, the direct to the motherboard BIOS chip to rewrite, causes the machine not to start at all, does not self-test. Without tools like programmers, your motherboard will only be scrapped. Sometimes it may be because the BIOS chip is broken by the virus, causing the maintenance personnel misjudged, delayed a lot of time.

If a virus manufacturer understands how the video card works, it can also cause a black screen of the monitor by controlling the output of the video card, but it is usually only available after entering the system.

What about the black screen of a laptop computer

Sleep-induced laptop screen black screen

Do not think this small problem is funny, sometimes turn the laptop screen or away from the computer for a long time or accidentally pressed to the notebook sleep key, The Notebook sleep key is the power button click on the computer to sleep. Many friends who do not understand computers are often unprepared for such situations. If your computer sleeps, press the power-on key to be careful not to press too long, more than three seconds must be off. You can also set the notebook screen to rotate or the lid to never sleep.

Settings: Control Panel-all Control Panel items-Power Options-Edit schedule Settings-the computer goes to sleep: never. (Other models of notebooks everyone extrapolate)

Sleep is set to never sleep or set the way you want.

　　

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A black screen caused by a computer system being damaged or poisoned

If the computer system is damaged or poisoned by the black screen, this Macau MGM is good judge. Directly restart the boot into the Bois interface or press F8 to see if you can enter the Safe mode, if the power on the Bois interface or can enter the security mode that the hardware itself is not bad, just operating system problems. That's a lot easier, so just reinstall the operating system.

A black screen caused by a bad laptop hardware

1, generally can lead to black screen the most common most important hardware has power, LCD monitor, memory, hard disk, motherboard and so on. This takes us to one by one exclusions. Because the notebook is more sophisticated, disassembly is more complex, usually their own hands are more difficult, but we can first find out the reasons for the maintenance can save a lot of money or feel relatively simple to repair their own hands.

2, first, to check the power supply, to see if the laptop battery has electricity, power plug is plugged in, this only need to see the power LED is not bright, if there is no external power supply, first plugged in with an external power supply. Before small made a friend notebook black screen panic run to show me, small asked him: The notebook has not fallen, the child has not sat, messed up (encountered by the child sitting bad laptop LCD screen), Friend replied: nothing. Later small series directly plugged in the external power supply everything is normal! The laptop battery is not powered by a black screen. Therefore, the first detection power is a problem, laptop power itself has a problem even plugged in the external power will also black screen phenomenon, so we have to remove the power supply, and then plug the power, if the external power is plugged in the boot is normal, the notebook built-in power is bad, buy a new installation of their own OK!

3, if the power led has been on the external power supply also plug the good, it means that the power is not a problem. At this time carefully check the notebook cooling fan port whether there is wind, hard drive LED is lit. If the cooling fan, hard disk is not a problem, restart the computer boot, ears carefully put on the notebook to listen to whether there is a "drip" sound, or has been "drip" sound, if there has been a drop alarm sound that may be the notebook memory is loose, open the machine itself to plug it back. In general, the memory bar is not easy to bad, notebook memory strip is not a chance of loosening.

　　

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4, the above steps are excluded, it is necessary to detect the problem of video card or LCD monitor. First we need to prepare an external monitor, which is the best desktop. Use an external monitor to connect to the external display of the laptop, which is the line that the desktop monitor connects to the host's graphics interface. If the external monitor is connected to the notebook, start the notebook computer, if the external monitor display everything is normal, the notebook motherboard, CPU, hard disk, video card, memory bar is no problem. That's the problem with the laptop LCD screen. Notebook LCD screen is broken for the following reasons: First, LCD LED screen problems, the second is the LCD screen connected to the motherboard on the graphics interface or circuit problems. If such a problem arises, we recommend that you do not have to do their own, directly after the sale or repair site testing, if you can repair as far as possible, can not repair a new monitor screen. If the external monitor does not display something, it means the motherboard or the video card is broken. Generally speaking hard disk bad odds are much smaller, basically can be said that the video card is bad, the graphics card burned out or the graphics card to connect the motherboard line is broken, because now the notebook card is welded on the motherboard, the video card is bad means to change the motherboard. However, if the welding is only a bad place can be re-welding on the line.

5, may because the notebook temperature is too high, and often play the game and the notebook thermal performance is not good, will appear the graphics card temperature is too high direct black screen, huaping. This time hurriedly shut down the machine, take to check whether the video card has been burnt out, if the video card is not burnt out then only need to put the notebook "wash" that is, the full dust, re-clean exhaust system, coated silica gel, change the fan.

6, in short, encountered a notebook black screen must not panic, we have to first to find out where the problem is. Know which part of the problem is the right remedy to find a solution to implement one after another! Do not encounter such a problem on their own demolition, this is not to taste lost, not because of a small problem to cause a bigger problem!

WIN10 Computer black screen How to teach you seven ways to solve