Ask the master to solve the problem of good and bad when the computer boots up and the screen is nor

It's not about the display, it could be a software or hardware issue.

1. From the software aspect, the possible causes and solutions are:

Some ideas for solving the problem, you can try them one by one:

1 Moderate, medium Trojan or malicious program, use anti-software to kill the Trojan virus, 2 Repair IE, use 360, Kingsoft, Rising, etc. can ,,, or directly upgrade the IE browser.

3 Reinstall the graphics card, sound card, and motherboard drivers (especially those of the graphics card), if the problem is not solved, it is best to try it in a different version.

4 Reinstall Direct X

5 You can try uninstalling Microsoft.

6 The application is updated and upgraded as much as possible, and patched, as mentioned earlier.

Change the system, re-download other versions of software or games, 8 is not good, reinstall the system, is the trouble point.

2. Analysis from the hardware aspect.

1。The memory module is broken (mostly second-hand memory).

2。Memory with quality issues is used, or is not compatible well"Pick the board"Memory.

3。The part of the gold finger that is plugged into the motherboard of the memory is too dusty, 4. Different brands of memory with different capacities are used, resulting in incompatibilities.

For memory, you can take it off and wipe the gold finger clean with an eraser, and then go back up, if not, you can swap the slots, in addition, you can turn down the frequency or CAS value of the memory by one level in the BIOS (the larger the CAS value, the lower).

For multiple root memory, you can reduce one of them, and if the problem is resolved, it means that there is a problem with that memory or at least it is not compatible.

5。Thermal problems caused by overclocking, check and improve the cooling conditions.

6 CPU is unstable or even damaged after overclocking, it is recommended to restore the default settings, , if it is bad, it is very cupy, 7 There is a problem with the hardware Replace the hard drive.

8. The motherboard is broken, which can only be ruled out by the replacement method or judged by the debug card.

It is recommended to redo the system to see!

Aren't you playing around and the monitor slowly goes black, and then you tap on the monitor, or wait a long time for the display to show up again? The computer's monitor high-voltage pack was broken, and I went to the repair place to replace it with about 50 bullets.

Or go to the official maintenance department, or the computer city, and ask the master there to help you take a look. It is determined according to the following method:

1. The characteristics of a general computer screen are generally as follows:

Not bright, bright spots or bright lines, strictly speaking, and the bad cable is mostly due to display problems, probably because the cable is not plugged in tightly or a certain part, the characteristics are generally manifested as:

The display is unstable, sometimes it is not displayed, or sometimes the display icon is distorted or the display screen jumps, maybe the screen is black.

2. Exchange test method:

Use a good display or a good cable to cross-check to know whether the screen is broken or the line is broken.

3. External monitor:

Connect the laptop to an external monitor, if it is normal, it should be a problem with the screen, if not, it is a cable problem.

4. Screen rotation angle:

The angle of screen rotation is different,Some angles are spent,Some don't spend, it may be a problem with the wiring,The possibility of the screen being broken is not large。

Not necessarily, if you're a desktop or a laptop, take out the graphics card and wipe it to see if it's okay.

Maybe the computer hasn't been used for a long time.

This is a problem with the LCD screen.

The main reasons for the display to be white are as follows:

1. The internal problems of the display mainly include: LCD panel drive circuit problems, LCD panel power supply circuit problems, screen wire contact problems, motherboard control circuit problems and other problems.

Since the LCD display screen is white after turning on, it means that the backlight and high-voltage generation circuit are working normally, but the LCD panel does not get the driving signal. If the screen disappears after the laptop is turned off, and then the screen is white again, it may be caused by a problem with the power strip.

3. Since the switching signal emitted by the motherboard microprocessor is generally controlled by several transistors, the fault may be that the triode that controls the switching signal is damaged.

Extended Information: The solution to the white screen phenomenon is as follows:

1. First disassemble the shell of the LCD display, and then check whether the screen cable interface is loose or not connected. After checking, the screen cable is connected normally.

2. Then turn on the power switch of the laptop, and then use a multimeter to measure whether the power supply voltage of the screen cable interface is normal. If the supply voltage is normal, go to step 5; If it is not normal, then check whether the fuse resistor or fuse inductor near the output of the screen cable is open or damaged. If it is damaged, the damaged component can be replaced.

3. If the fuse resistor or fuse inductance near the output end of the screen cable is normal, then check whether the output voltage of the DC-DC voltage conversion circuit supplying power to the LCD display is normal. If the output voltage is abnormal, the inspector should replace the damaged components such as the fuse resistor, PWM controller, switch tube, inductor coil, filter capacitor and other components in the power supply circuit.

4. If the voltage at the output end of the DC-DC voltage conversion circuit is normal, there are damaged capacitors and other components between the output end of the DC-DC voltage conversion circuit and the interface of the screen line, and the damaged components can be checked and replaced.

5. If the power supply voltage of the screen cable interface is normal, then check whether the timing signal and driving signal in the LCD panel drive circuit are normal. If it is abnormal, check the output signal, input signal and power supply voltage of the chip that generates this signal respectively to determine whether the driver chip is damaged. If it is damaged, it can be replaced.

The first is the system cause.

You can enter the safe mode, move the important content to other disks, and directly choose to restore or reinstall the system.

The second cause of poisoning.

The poisoning can be solved, and a comprehensive drug check will be carried out after entering the safe mode.

The third is hardware reasons.

You need to check the hardware, plug and unplug the memory again, and then check whether the hard disk has bad sectors, and if there are bad sectors, you need to take it for repair.

Fourth, the driving cause.

WinXP white screen may be your graphics card installed or Qing Peng is now a problem, or the incompatible graphics card driver has been updated. You can use the driver wizard (personally, it is recommended to go to the official website of your computer brand to go to the **driver), or remove the graphics card driver in safe mode, and then enter the system to reinstall it.

A white screen on your computer is usually caused by the above four reasons. As long as we check one by one and solve it in the corresponding way, this problem will be solved.

This is relatively rare, so let's see if this will happen when you connect other devices. If you don't have other equipment, you can change the interface of the graphics card to see if it's clear and change the cable. Dynamic interface to see if there are any changes. Otherwise, it's a problem with the Huai Hall inside the display, and it's complicated.

The display was damaged by an external force.

The screen has been broken, so let's change it.

Problem analysis: The computer automatically enters the CMOS interface of the motherboard when it is turned on, if you rule out human error to enter (you can press the ESC key to exit), it means that the computer fails to pass the self-test when it is powered on, which is generally a CMOS parameter error or hardware failure. Common phenomena include battery failure, misconfiguration, poor memory or hard disk contact, etc., which need to be investigated one by one.

Solution: 1. Battery failure: cause the computer to call the default parameters of CMOS, if it is inconsistent with the local hardware environment, the computer cannot be started normally. You can purchase a motherboard battery to replace it, then turn on the computer and press the DEL button (F2 or other designated hotkeys for notebooks) to enter the CMOS interface, and reset the correct parameters, and finally press F10 to save and exit the reboot.

The time shown in the diagram is correct and this can be excluded.

2. Configuration error: This situation will also occur due to the manual configuration of CMOS parameters that do not match the local hardware environment. In general, you can press the F1 key to skip the non-fatal error and start the computer directly according to the prompt message on the black background and white text on the screen, or press the del key to enter the CMOS, then press F9 to load the predefined parameters or select Load optimized defaults or load fail-safe defaults, and then press F10 to save and exit the restart.

3. Hardware failure: If the above operations are invalid, it means that there is a problem with the hardware, generally because the memory and the hard disk are in poor contact or the hard disk master boot record is damaged, and the memory or hard disk needs to be reinserted and unplugged, or the hard disk master boot record is repaired or the system is reinstalled or the hard disk is replaced.

If you turn it off once, it won't be, and it's the same when I turn on the computer once.

There is a small button next to the boot switch,That's the restart button,Press f8 immediately after restart to the advanced option and then let go,Select "The latest correct configuration" Enter to repair,It's not possible to press f8 to enter the safe mode to restore the system or reinstall the system (if the reinstallation is also a crash,It is recommended to overhaul it)。

If such a problem arises due to software conflicts, inappropriate drivers, or system problems, you can restore the system in safe mode, or you can't reinstall the operating system, don't install software, patches, drivers, etc., and see if there are still problems with booting? If you don't install drivers, patches, and software step by step, and find something that isn't suitable, don't install it.

If there is a hardware, take out the motherboard battery and put it on the charge, plug and unplug the memory, clean the graphics card, check whether there is a problem with the hard disk, and if it doesn't work, just overhaul it.

If it doesn't work, your machine is equipped with a one-click restore. One-click restore the system, press F11 when you boot up, it will automatically enter the restore interface, of course, of course, there is also a backup interface, no matter when, it is best to back up the system before restoring, and then restart, and then enter the restore operation with the same operation.