The computer starts up with a black screen you can enter the motherboard settings, and the black sc

1) The monitor is powered off, or the monitor data cable is in poor contact. In addition, the computer has been used for a long time, and the power cord of the monitor is easy to oxidize and break;

2) There is no power supply to the motherboard;

3) Poor contact or damage to the graphics card;

4) Poor CPU contact;

5) Poor contact of memory modules;

6) The machine is infected with CIH virus, and the BIOS is refreshed destructively;

7) Check the plugging and unplugging, if necessary, you can use a rubber to remove the oxide film on the gold finger;

8) If the floppy drive has a floppy disk, many times it will cause the computer to start or restart, and the computer will have a black screen and cannot enter the system. To avoid such situations, it is also possible to cancel the floppy disk boot item in the BIOS.

Insert the system disk, and the interface for installing the system will not appear.

Has the light zone set in the BIOS been activated?

It seems to be a problem with the hard disk, generally don't just stare at the screen, pay attention to the hard disk lights, and whether the lights on the keyboard still have no response to judge whether it is really dead.

Next time, it's best to make a note of the blue screen **, such as 0x0000 or something.

The biggest suspect of this fault is memory, change memory or change socket and try again. The problem with the system installation is that you don't set First Boot to cdrom in CMOS

If you have a problem with your motherboard, see if your motherboard has capacitors bulging up? If there is no problem, it is serious. If you have a problem with the south or north bridge of your motherboard, you are ready to change the motherboard.

If there is a physical failure in the hardware, take it to the computer city to test and see it, and you can't necessarily see it with your eyes, and you can estimate the problem with the memory or motherboard.

Eighty percent of the motherboard is incompatible with the system. Check it out.

Virus. Let's reinstall the system.

You can use the method of replacing hardware to determine which hardware is faulty.

First of all, check whether the connection contact of each hardware is intact, set it in the BIOS not to restart, it is really not recommended to reinstall the system!

There are several situations with only the black screen, and I don't know which one yours belongs to.

First of all, your computer can't even see the motherboard information, if you can see it, it's a system problem; If you don't see it, you should look for the problem in the following questions.

1. Memory module problem: The memory module is loose and not plugged in well or there is dust, and the memory module is damaged.

2. Graphics card problem: The graphics card is not plugged in properly or the graphics card is damaged.

Third, the capacitor problem, you can see if the capacitor on the motherboard has a burst of pulp, this situation will generally occur, if there is a damaged capacitor to replace it.

Fourth, the CPU is not plugged in or loose, I hope that the third type does not appear in this case, and if the third type appears, replace it directly.

5. The computer cannot be started normally due to partial damage to the motherboard.

The motherboard is broken, and replacing it can be solved.

You can press Ctrl+Alt+del

Call out Task Manager, create a process explorer, and check for viruses.

Is there an over-frequency? This problem will occur if the overclocking is too high, try adding some voltage. Or drop back to the default frequency. If it doesn't work, you will find trouble with the power supply. It's also possible that the second floor said that I had a virus that caused this kind of thing to happen.

It's not a hardware issue! It's a system problem! Do not restore the system.

It's about reinstalling the system! Give it a try.

Absolutely!

1. Whether the computer monitor and the host are normally connected to the power supply, and whether the power indicator is on. 2. If it is a notebook to check the power indicator of the computer, if it is not lit and the computer is connected correctly, it is very likely that there is a problem with the motherboard, please send it to the warranty point for repair in time.

You didn't put the motherboard** and can't identify the problem.

After powering on, press F8 wildly. After a while, you'll be fine.

Cause of the failure. The first is a system problem.

The second type is a software problem.

The third type is the residual file of a software virus.

Fourth, the software is incompatible.

Fifth, the cache settings are unreasonable.

Sixth, the system lacks resources.

Seventh: viruses and Trojan horses.

Eighth, the hardware is overheating.

The ninth type of hard disk.

The tenth type is hardware quality.

The eleventh comma difference is hardware overclocking.

The twelfth type is the hardware environment.

Black screen workaround.

1: When you want to boot the computer, restore the BIOS to its factory state first.

2: Close all launches. (msconfig) in Run (tick) ctfmonand anti-virus software.

3: You copy the following command. At the command prompt, type:

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

regsvr32 /s

Reasons for the black screen of the computer:

The problem of black screen on the computer is actually caused by the sequelae of the Trojan virus. Due to the fact that the current conventional security tools remove the Trojan virus, the damaged system files are not repaired, resulting in abnormal phenomena such as the computer black screen and the shortcut cannot be opened.

Computer black screen solution.

1. The black screen of the computer is very troublesome if it is repaired manually, and many netizens do not know much about the computer, so it is recommended to use repair software to repair it automatically.

2. Take the Kingsoft Poison I use as an example: first press F8 to enter the computer security mode when you boot the phone, and then use the system repair function of Kingsoft Poison to repair it with one click, and the problem is OK.