When the laptop is turned on, the hard disk turns, but the laptop has a black screen and can t get u

The crash during the boot process is usually caused by the loss or corruption of system files, or it may be caused by misconfiguration of system information, wrong driver installation, etc. This is a software problem that needs to be eliminated by entering safe mode and checking "Device Manager". The easiest way to do this is to format the reinstall system.

Relatively speaking, with the continuous upgrade of the version of the Windows operating system, its requirements for hardware stability are getting higher and higher. A machine that may run Win98 normally may not be able to install Win2K or XP. However, as long as the machine can be powered on and can find a hard disk or floppy drive, it can generally enter the DOS operation, but it is important to know that DOS is also an operating system.

Guangqi, see if it can be started, if it can't be a hardware problem, if it can be started is a problem with the system, reinstall the system.

If there is no sign of starting, it means that the boot circuit may be burned, because if the power is suddenly unplugged, the "overcurrent" will suddenly increase, which will break down or damage some parts or related circuits.

If there are signs of booting and the self-test can also pass, it means that there are many problems with the system. However, being able to turn on does not mean that the hardware is not faulty, and it can only be determined by testing.

Is there nothing to show on the black screen you are talking about? Is there an alarm sound?

The hard disk light is flashing to indicate that the program is being read and written, such as memory and motherboard problems, there will generally be an alarm sound, if there is no abnormal alarm to move the screen, it may be that the connection cable is loose.

The laptop has a black screen when it is turned on, which may be a problem with the software or hardware.

One, the black screen caused by the software.

Sometimes after installing some software or hardware drivers, you find that after restarting, the computer can't enter the system and the screen has been black, which is the black screen of the laptop caused by the software. If the black screen is caused by software, take the Windows system as an example, you can restart the machine, press the F8 key several times when booting up, and bring up the system's boot options menu.

Once the System Boot Options menu comes out, select Enter Safe Mode. If you can enter the safe mode normally, you can delete the software or driver installed before the black screen in the safe mode. Then restart the machine and see if the laptop can fix the black screen issue.

Second, the hardware causes the laptop to have a black screen.

Hardware-induced black screen for the following reasons:

1) The cause of static electricity, sometimes static electricity will cause the circuit of the notebook motherboard to be abnormal, resulting in no reaction on the screen after the power is turned on. You can try to turn off the battery and power of the laptop, and then press the power start of the laptop several times to let the machine release the static electricity. Then connect the power supply, turn it on, and see if it can solve the fault.

2) The memory is loose or the memory has a hardware failure. There are several major components of a laptop computer, including the CPU, motherboard, memory, and graphics card. These parts are indispensable, as long as one of them has a problem, it will cause the laptop to not function properly, the most common is that the boot does not respond.

In general, the probability of CPU and motherboard failure is relatively small, and it is more common for the laptop to fail to boot due to loose memory. At this time, first remove the battery and power supply of the notebook, if it is not difficult to remove the computer, you can open the back cover of the notebook by yourself and reinsert the memory. After plugging in the memory, power it on again, start the machine, and see if you can solve the fault.

3) The LCD part of the notebook is faulty. There are some notebooks that are a little older, and this may be the case. Display components generally include displays, data cables, and some other small parts.

If you have a desktop monitor, try plugging it to the VGA display connector on your laptop, and then switch the display to the VGA external display on your laptop. If you can switch to an external monitor, it means that there is a big problem with the display part.

4) The graphics card hardware is faulty, the graphics card is responsible for the source of all the display output of the computer, so it has a problem, and there is no display on the screen. If the graphics card is broken, the average user can't solve it, and the only way to solve it is to find the computer's after-sales service. If the notebook is within the warranty period, it can be taken for free inspection and repair.

The specific model of your machine, this one is found with good technology, and the chip is indeed well handled, and the heat dissipation is good.

According to what you said, it should be that the computer's memory module is loose, because when you press it hard, it will touch the memory module, and it is best to unplug the computer's memory module and plug it back in.

Don't try it yourself, it's basically a problem with the bridge chip.

At that time, the repair was not thorough, and it was supposed to be a new BGA. At that time, only additional welding was done, so after a long time, the unstable part of the additional welding was opened again.

The best way to fix this situation is to change the motherboard. BGA has a certain probability of success, and it may not be able to repair it even if it is repaired.

If you want to do it yourself, check which chip it is by pressing it down on the keyboard, then remove the motherboard, adjust the temperature to 500 with a heat gun, add some rosin, and heat the chip for about 5 minutes. After cooling down, test it on the machine, and it should be ready to use. If it is a high-power chip such as a graphics card, please clean the rosin used for soldering, install the heat dissipation device, and then turn it on.

You remove the hard drive and install it again.,I encountered it once and the excuse was loose,

According to what you said, there is no way but to find a better technical adjustment.

Hello: The following methods are for your reference:

It is possible that the graphics card is bad, and HP has the most such problems.

Poor memory contact is also possible.

Is it a Lenovo notebook? And have you passed the BIOS self-test? I'm afraid to talk too much and be more confused!

Disassemble the hard disk and optical drive, minimize the test, this is the way to deal with it yourself in conditional situations, and further eliminate them one by one. If there is no condition, it will be sent for repair.