Why can t the computer screen be turned on? What is the reason why the computer screen won t turn on

According to the description, it can only be used for your reference.

1. The last correct configuration: Before booting and booting the operating system, we keep pressing the F8 key, select "Last correct configuration" and then press Enter.

2. Safe mode: If the "last correct configuration" does not solve the problem, press F8 when you boot up, enter the safe mode, use software such as 360 to repair the system files, and check for viruses.

3. If it can't be repaired, we can enter the safe mode for system restoration.

4. None of the above methods work, and it is recommended to do the following:

Desktop host: 1) Power off, open the chassis, plug in and unplug the memory, wipe the gold finger part with an eraser, and plug it back in (don't reverse it).

2) Plug and unplug the graphics card, wipe the gold finger part with an eraser, and re-insert it tightly (the buckle should be buckled).

3) Unplug the power cord, cut off the button cell battery of the motherboard, wait for three minutes, and then reinstall the motherboard.

Laptop:

Unplug the power cord, remove the battery, open the back cover of the memory, plug in and unplug the memory, wipe the gold finger part with an eraser, and plug it back in (don't reverse it).

Unplug the power cord, remove the battery, and press and hold the power button for 30 seconds without letting go.

If the fault persists, the system can only be reinstalled.

Apple mobile phone flash, apple mobile phone how to flash tutorial.

What's going on with the computer web page not opening?

Your situation is most likely due to the following:1The power supply is insufficient.

2.The graphics card is in poor contact with the motherboard.

Only if your machine is a discrete graphics card, the integrated graphics card is not in this list) Solution: For 1, you can choose to repair the power supply (about twenty or thirty pieces, but it is easy to fail again); buy an old power supply (probably a few dozens); Buy a new power supply (because the power supply has a great impact on the computer, so if you add silver, you should buy a better power supply, which is beneficial to the machine) For 2, you can remove the graphics card, carefully wipe the gold finger and then reinstall it into the machine, pay attention to the screws to be properly tightened. Specific implementation steps:

After turning off the power switch of the computer, first unplug the hard disk, optical drive and power supply, then remove the graphics card and memory module, wipe the gold finger and reinstall it, then check whether the monitor plug and the graphics card are plugged in tightly, then remove the battery on the motherboard, put it back on the motherboard after about half a minute, and finally turn on the power switch.

If the monitor is working properly at this time, turn off the power again, connect the hard disk and optical drive to the power supply, and then turn the power back on. If the machine is working properly, then it may be that your memory module or graphics card is not plugged in tightly, if the machine does not work, then the power supply is insufficient, and you can only change the power supply.

If the monitor still does not display the image at this time, but the case starts normally, then it is estimated that there is a problem with your graphics card, which is a hard fault, and you can only replace the graphics card or find someone to repair it.

If it's determined that it's a fault of the monitor.,Go to the display customer service.,If it's not guaranteed, it's free to deal with.。 If it's over-insured, it's about 50-80 yuan, and it's done!!

Regardless of the memory. Reinsert the graphics card. It is estimated that the graphics card was loose during the moving process.

I was last night.,It's raining heavily.,I'm playing.,Suddenly the host and the display went off together.,Everything else has electricity.,I'll try the host in the morning.,What's going on if the display doesn't open.,God.,Help me.。

If there is no alarm sound, it may be that there is a problem with the fan of the graphics card, so go to the computer store and ask a professional to take a look. My right-click -Properties -Screen Saver -Power -First, turn off the monitor and select Never. That's because of your monitor.

Judgment method:

1. Unplug the signal cable and plug it into the power supply separately, and see if the signal indicator flashes or not, it is normal to flash. Plug in the signal cable, and it is normal for the signal light not to flash;

2. Plug in the signal cable, the display signal light is still flashing, saying that the gall may be faulty signal circuit, either the signal line is broken, or the VGA socket of the host is soldered, or the graphics card is broken;

3. Plug this monitor into another computer host and try it, if it still can't be used, 100% of the monitor is broken. It's going to be repaired, if it's near me, I can help with the repair, I'm a professional.

It's an abnormal shutdown, which requires you to enter the BIOS, press DEL, and then press F10, and you're done.

The computer crashes and won't open why.